[Tizen] Fix of backendlib - pkg_plugin_get_app_detail_info_from_package should validate path
[Tizen] Fix of backendlib - pkg_plugin_get_app_detail_info_from_package should validate path

If pkgmgr-server passes path that is not valid widget path,
this will lead to crash of pkgmgr-server. Function
pkg_plugin_get_app_detail_info_from_package of backendlib
should check if valid package data can be received from
given path.

BUG=XWALK-2683

hgl888/crosswalk,axinging/crosswalk,jondwillis/crosswalk,tedshroyer/crosswalk,fujunwei/crosswalk,ZhengXinCN/crosswalk,hgl888/crosswalk,axinging/crosswalk,Pluto-tv/crosswalk,jondwillis/crosswalk,Bysmyyr/crosswalk,stonegithubs/crosswalk,chuan9/crosswalk,XiaosongWei/crosswalk,baleboy/crosswalk,ZhengXinCN/crosswalk,chuan9/crosswalk,XiaosongWei/crosswalk,stonegithubs/crosswalk,weiyirong/crosswalk-1,TheDirtyCalvinist/spacewalk,Bysmyyr/crosswalk,PeterWangIntel/crosswalk,marcuspridham/crosswalk,jpike88/crosswalk,DonnaWuDongxia/crosswalk,weiyirong/crosswalk-1,crosswalk-project/crosswalk-efl,lincsoon/crosswalk,DonnaWuDongxia/crosswalk,tomatell/crosswalk,pk-sam/crosswalk,XiaosongWei/crosswalk,myroot/crosswalk,hgl888/crosswalk-efl,jpike88/crosswalk,chinakids/crosswalk,minggangw/crosswalk,pk-sam/crosswalk,jondwillis/crosswalk,minggangw/crosswalk,pk-sam/crosswalk,marcuspridham/crosswalk,baleboy/crosswalk,marcuspridham/crosswalk,leonhsl/crosswalk,fujunwei/crosswalk,chuan9/crosswalk,chuan9/crosswalk,alex-zhang/crosswalk,hgl888/crosswalk,bestwpw/crosswalk,myroot/crosswalk,crosswalk-project/crosswalk-efl,amaniak/crosswalk,fujunwei/crosswalk,jondwillis/crosswalk,axinging/crosswalk,amaniak/crosswalk,minggangw/crosswalk,alex-zhang/crosswalk,hgl888/crosswalk,crosswalk-project/crosswalk-efl,crosswalk-project/crosswalk,dreamsxin/crosswalk,hgl888/crosswalk-efl,zeropool/crosswalk,xzhan96/crosswalk,myroot/crosswalk,weiyirong/crosswalk-1,bestwpw/crosswalk,bestwpw/crosswalk,chinakids/crosswalk,Bysmyyr/crosswalk,jondwillis/crosswalk,Pluto-tv/crosswalk,mrunalk/crosswalk,darktears/crosswalk,TheDirtyCalvinist/spacewalk,lincsoon/crosswalk,jondong/crosswalk,rakuco/crosswalk,RafuCater/crosswalk,XiaosongWei/crosswalk,zliang7/crosswalk,lincsoon/crosswalk,fujunwei/crosswalk,Pluto-tv/crosswalk,dreamsxin/crosswalk,DonnaWuDongxia/crosswalk,bestwpw/crosswalk,Bysmyyr/crosswalk,XiaosongWei/crosswalk,lincsoon/crosswalk,zliang7/crosswalk,bestwpw/crosswalk,tedshroyer/crosswalk,heke123/crosswalk,hgl888/crosswalk,myroot/crosswalk,heke123/crosswalk,tomatell/crosswalk,crosswalk-project/crosswalk-efl,RafuCater/crosswalk,hgl888/crosswalk,alex-zhang/crosswalk,siovene/crosswalk,zliang7/crosswalk,siovene/crosswalk,jondong/crosswalk,axinging/crosswalk,Pluto-tv/crosswalk,xzhan96/crosswalk,mrunalk/crosswalk,zeropool/crosswalk,leonhsl/crosswalk,Pluto-tv/crosswalk,dreamsxin/crosswalk,jondong/crosswalk,weiyirong/crosswalk-1,tomatell/crosswalk,lincsoon/crosswalk,crosswalk-project/crosswalk,XiaosongWei/crosswalk,hgl888/crosswalk-efl,axinging/crosswalk,tedshroyer/crosswalk,marcuspridham/crosswalk,fujunwei/crosswalk,Bysmyyr/crosswalk,bestwpw/crosswalk,DonnaWuDongxia/crosswalk,PeterWangIntel/crosswalk,minggangw/crosswalk,heke123/crosswalk,leonhsl/crosswalk,stonegithubs/crosswalk,zeropool/crosswalk,jpike88/crosswalk,heke123/crosswalk,minggangw/crosswalk,zeropool/crosswalk,jpike88/crosswalk,pk-sam/crosswalk,amaniak/crosswalk,chinakids/crosswalk,zliang7/crosswalk,siovene/crosswalk,TheDirtyCalvinist/spacewalk,RafuCater/crosswalk,xzhan96/crosswalk,rakuco/crosswalk,baleboy/crosswalk,rakuco/crosswalk,xzhan96/crosswalk,fujunwei/crosswalk,hgl888/crosswalk,darktears/crosswalk,jondwillis/crosswalk,fujunwei/crosswalk,stonegithubs/crosswalk,tomatell/crosswalk,darktears/crosswalk,TheDirtyCalvinist/spacewalk,leonhsl/crosswalk,amaniak/crosswalk,marcuspridham/crosswalk,leonhsl/crosswalk,tedshroyer/crosswalk,ZhengXinCN/crosswalk,siovene/crosswalk,tomatell/crosswalk,hgl888/crosswalk-efl,myroot/crosswalk,Bysmyyr/crosswalk,XiaosongWei/crosswalk,zliang7/crosswalk,xzhan96/crosswalk,xzhan96/crosswalk,pk-sam/crosswalk,chinakids/crosswalk,heke123/crosswalk,mrunalk/crosswalk,jondong/crosswalk,alex-zhang/crosswalk,DonnaWuDongxia/crosswalk,dreamsxin/crosswalk,chinakids/crosswalk,amaniak/crosswalk,heke123/crosswalk,axinging/crosswalk,Pluto-tv/crosswalk,RafuCater/crosswalk,rakuco/crosswalk,heke123/crosswalk,darktears/crosswalk,rakuco/crosswalk,siovene/crosswalk,stonegithubs/crosswalk,TheDirtyCalvinist/spacewalk,RafuCater/crosswalk,minggangw/crosswalk,myroot/crosswalk,hgl888/crosswalk,RafuCater/crosswalk,lincsoon/crosswalk,ZhengXinCN/crosswalk,rakuco/crosswalk,ZhengXinCN/crosswalk,siovene/crosswalk,dreamsxin/crosswalk,dreamsxin/crosswalk,crosswalk-project/crosswalk-efl,marcuspridham/crosswalk,mrunalk/crosswalk,hgl888/crosswalk-efl,crosswalk-project/crosswalk-efl,chuan9/crosswalk,siovene/crosswalk,alex-zhang/crosswalk,dreamsxin/crosswalk,crosswalk-project/crosswalk,jondong/crosswalk,jondwillis/crosswalk,hgl888/crosswalk-efl,PeterWangIntel/crosswalk,tomatell/crosswalk,heke123/crosswalk,zliang7/crosswalk,Bysmyyr/crosswalk,jondong/crosswalk,Bysmyyr/crosswalk,PeterWangIntel/crosswalk,mrunalk/crosswalk,zliang7/crosswalk,ZhengXinCN/crosswalk,chuan9/crosswalk,bestwpw/crosswalk,crosswalk-project/crosswalk-efl,lincsoon/crosswalk,jpike88/crosswalk,pk-sam/crosswalk,hgl888/crosswalk-efl,axinging/crosswalk,zeropool/crosswalk,ZhengXinCN/crosswalk,amaniak/crosswalk,zeropool/crosswalk,rakuco/crosswalk,tedshroyer/crosswalk,leonhsl/crosswalk,DonnaWuDongxia/crosswalk,alex-zhang/crosswalk,lincsoon/crosswalk,baleboy/crosswalk,baleboy/crosswalk,xzhan96/crosswalk,xzhan96/crosswalk,amaniak/crosswalk,baleboy/crosswalk,darktears/crosswalk,jpike88/crosswalk,chinakids/crosswalk,leonhsl/crosswalk,weiyirong/crosswalk-1,tomatell/crosswalk,crosswalk-project/crosswalk,stonegithubs/crosswalk,TheDirtyCalvinist/spacewalk,crosswalk-project/crosswalk,jondong/crosswalk,marcuspridham/crosswalk,RafuCater/crosswalk,stonegithubs/crosswalk,darktears/crosswalk,alex-zhang/crosswalk,baleboy/crosswalk,darktears/crosswalk,minggangw/crosswalk,DonnaWuDongxia/crosswalk,tedshroyer/crosswalk,crosswalk-project/crosswalk,jpike88/crosswalk,PeterWangIntel/crosswalk,chuan9/crosswalk,rakuco/crosswalk,crosswalk-project/crosswalk,marcuspridham/crosswalk,mrunalk/crosswalk,darktears/crosswalk,PeterWangIntel/crosswalk,zliang7/crosswalk,jondong/crosswalk,Pluto-tv/crosswalk,crosswalk-project/crosswalk,minggangw/crosswalk,weiyirong/crosswalk-1,baleboy/crosswalk,PeterWangIntel/crosswalk,weiyirong/crosswalk-1,zeropool/crosswalk,tedshroyer/crosswalk,pk-sam/crosswalk