Whitespace cleanup in registration/CMakeLists.txt
Whitespace cleanup in registration/CMakeLists.txt

While making modifications for metslib, I noticed that there was
some mixed use of tabs and spaces for intentation.  I normalized
them all to 4 spaces per tab and made the indentation of all of
the "set" blocks consistent.

MMiknis/pcl,LZRS/pcl,jakobwilm/pcl,kanster/pcl,lydhr/pcl,fskuka/pcl,kanster/pcl,KevenRing/pcl,shangwuhencc/pcl,shangwuhencc/pcl,drmateo/pcl,pkuhto/pcl,srbhprajapati/pcl,3dtof/pcl,fskuka/pcl,sbec/pcl,starius/pcl,krips89/pcl_newfeatures,lebronzhang/pcl,stfuchs/pcl,msalvato/pcl_kinfu_highres,starius/pcl,msalvato/pcl_kinfu_highres,shivmalhotra/pcl,simonleonard/pcl,nh2/pcl,lydhr/pcl,simonleonard/pcl,stfuchs/pcl,locnx1984/pcl,shivmalhotra/pcl,shyamalschandra/pcl,lebronzhang/pcl,wgapl/pcl,stfuchs/pcl,msalvato/pcl_kinfu_highres,DaikiMaekawa/pcl,jakobwilm/pcl,fskuka/pcl,wgapl/pcl,RufaelDev/pcc-mp3dg,simonleonard/pcl,shangwuhencc/pcl,mikhail-matrosov/pcl,stefanbuettner/pcl,ipa-rmb/pcl,ipa-rmb/pcl,ResByte/pcl,fanxiaochen/mypcltest,3dtof/pcl,DaikiMaekawa/pcl,zhangxaochen/pcl,msalvato/pcl_kinfu_highres,damienjadeduff/pcl,simonleonard/pcl,ResByte/pcl,closerbibi/pcl,KevenRing/vlp,RufaelDev/pcc-mp3dg,fskuka/pcl,krips89/pcl_newfeatures,KevenRing/vlp,ResByte/pcl,jakobwilm/pcl,zavataafnan/pcl-truck,damienjadeduff/pcl,v4hn/pcl,zhangxaochen/pcl,KevenRing/pcl,stefanbuettner/pcl,pkuhto/pcl,mikhail-matrosov/pcl,fanxiaochen/mypcltest,damienjadeduff/pcl,shyamalschandra/pcl,chenxingzhe/pcl,MMiknis/pcl,nikste/pcl,srbhprajapati/pcl,sbec/pcl,3dtof/pcl,3dtof/pcl,starius/pcl,RufaelDev/pcc-mp3dg,chenxingzhe/pcl,mschoeler/pcl,zhangxaochen/pcl,zavataafnan/pcl-truck,nh2/pcl,shivmalhotra/pcl,nh2/pcl,locnx1984/pcl,the-glu/pcl,soulsheng/pcl,mikhail-matrosov/pcl,chenxingzhe/pcl,krips89/pcl_newfeatures,the-glu/pcl,jakobwilm/pcl,mschoeler/pcl,soulsheng/pcl,v4hn/pcl,nh2/pcl,v4hn/pcl,the-glu/pcl,nikste/pcl,stefanbuettner/pcl,chatchavan/pcl,LZRS/pcl,nikste/pcl,raydtang/pcl,v4hn/pcl,drmateo/pcl,cascheberg/pcl,starius/pcl,raydtang/pcl,Tabjones/pcl,Tabjones/pcl,krips89/pcl_newfeatures,chatchavan/pcl,kanster/pcl,nikste/pcl,zavataafnan/pcl-truck,soulsheng/pcl,pkuhto/pcl,chenxingzhe/pcl,zhangxaochen/pcl,sbec/pcl,wgapl/pcl,srbhprajapati/pcl,ResByte/pcl,jakobwilm/pcl,MMiknis/pcl,drmateo/pcl,drmateo/pcl,stefanbuettner/pcl,jeppewalther/kinfu_segmentation,mschoeler/pcl,MMiknis/pcl,raydtang/pcl,ipa-rmb/pcl,jeppewalther/kinfu_segmentation,msalvato/pcl_kinfu_highres,cascheberg/pcl,Tabjones/pcl,stefanbuettner/pcl,lydhr/pcl,DaikiMaekawa/pcl,mikhail-matrosov/pcl,ipa-rmb/pcl,closerbibi/pcl,sbec/pcl,shyamalschandra/pcl,zhangxaochen/pcl,wgapl/pcl,the-glu/pcl,starius/pcl,srbhprajapati/pcl,locnx1984/pcl,lydhr/pcl,MMiknis/pcl,fanxiaochen/mypcltest,lebronzhang/pcl,mschoeler/pcl,soulsheng/pcl,mikhail-matrosov/pcl,shivmalhotra/pcl,jeppewalther/kinfu_segmentation,closerbibi/pcl,LZRS/pcl,ResByte/pcl,cascheberg/pcl,KevenRing/pcl,the-glu/pcl,KevenRing/vlp,shivmalhotra/pcl,Tabjones/pcl,locnx1984/pcl,raydtang/pcl,shyamalschandra/pcl,pkuhto/pcl,sbec/pcl,drmateo/pcl,locnx1984/pcl,stfuchs/pcl,cascheberg/pcl,DaikiMaekawa/pcl,damienjadeduff/pcl,RufaelDev/pcc-mp3dg,jeppewalther/kinfu_segmentation,ipa-rmb/pcl,closerbibi/pcl,srbhprajapati/pcl,fanxiaochen/mypcltest,chatchavan/pcl,fskuka/pcl,pkuhto/pcl,chenxingzhe/pcl,zavataafnan/pcl-truck,lebronzhang/pcl,lebronzhang/pcl,shangwuhencc/pcl,kanster/pcl,RufaelDev/pcc-mp3dg,KevenRing/vlp,zavataafnan/pcl-truck,kanster/pcl,v4hn/pcl,LZRS/pcl,jeppewalther/kinfu_segmentation,closerbibi/pcl,KevenRing/vlp,KevenRing/pcl,raydtang/pcl,cascheberg/pcl,wgapl/pcl,DaikiMaekawa/pcl,simonleonard/pcl,Tabjones/pcl,soulsheng/pcl,chatchavan/pcl,stfuchs/pcl,mschoeler/pcl,krips89/pcl_newfeatures,nikste/pcl,shyamalschandra/pcl,damienjadeduff/pcl,fanxiaochen/mypcltest,3dtof/pcl,shangwuhencc/pcl,LZRS/pcl,KevenRing/pcl,lydhr/pcl