Find pack files in $GIT_DIR/objects/pack directory on git_odb_open
Find pack files in $GIT_DIR/objects/pack directory on git_odb_open

Currently we only catalog the available pack files into a table,
storing their path names relative to the pack directory.

Signed-off-by: Shawn O. Pearce <f01032651c12a22b2103346ba96b3b6b231f9d3c@spearce.org>

chiayolin/libgit2,KTXSoftware/libgit2,mcanthony/libgit2,kenprice/libgit2,jflesch/libgit2-mariadb,stewid/libgit2,mingyaaaa/libgit2,claudelee/libgit2,claudelee/libgit2,MrHacky/libgit2,rcorre/libgit2,swisspol/DEMO-libgit2,joshtriplett/libgit2,skabel/manguse,dleehr/libgit2,KTXSoftware/libgit2,sim0629/libgit2,magnus98/TEST,maxiaoqian/libgit2,mingyaaaa/libgit2,mrksrm/Mingijura,claudelee/libgit2,Snazz2001/libgit2,claudelee/libgit2,KTXSoftware/libgit2,t0xicCode/libgit2,jeffhostetler/public_libgit2,iankronquist/libgit2,Aorjoa/libgit2_maked_lib,oaastest/libgit2,KTXSoftware/libgit2,raybrad/libit2,mcanthony/libgit2,t0xicCode/libgit2,whoisj/libgit2,zodiac/libgit2.js,swisspol/DEMO-libgit2,magnus98/TEST,rcorre/libgit2,saurabhsuniljain/libgit2,stewid/libgit2,mrksrm/Mingijura,kissthink/libgit2,since2014/libgit2,kenprice/libgit2,sim0629/libgit2,oaastest/libgit2,jamieleecool/ptest,mcanthony/libgit2,dleehr/libgit2,jamieleecool/ptest,mrksrm/Mingijura,joshtriplett/libgit2,dleehr/libgit2,skabel/manguse,sygool/libgit2,since2014/libgit2,Tousiph/Demo1,JIghtuse/libgit2,amyvmiwei/libgit2,nacho/libgit2,dleehr/libgit2,joshtriplett/libgit2,rcorre/libgit2,MrHacky/libgit2,maxiaoqian/libgit2,whoisj/libgit2,mcanthony/libgit2,t0xicCode/libgit2,yosefhackmon/libgit2,swisspol/DEMO-libgit2,leoyanggit/libgit2,saurabhsuniljain/libgit2,mingyaaaa/libgit2,mhp/libgit2,JIghtuse/libgit2,Snazz2001/libgit2,mingyaaaa/libgit2,jflesch/libgit2-mariadb,chiayolin/libgit2,chiayolin/libgit2,t0xicCode/libgit2,iankronquist/libgit2,falqas/libgit2,oaastest/libgit2,raybrad/libit2,spraints/libgit2,yosefhackmon/libgit2,saurabhsuniljain/libgit2,magnus98/TEST,Snazz2001/libgit2,skabel/manguse,rcorre/libgit2,saurabhsuniljain/libgit2,mhp/libgit2,ardumont/libgit2,linquize/libgit2,spraints/libgit2,nokiddin/libgit2,yosefhackmon/libgit2,raybrad/libit2,skabel/manguse,yongthecoder/libgit2,nokiddin/libgit2,leoyanggit/libgit2,Tousiph/Demo1,sim0629/libgit2,Snazz2001/libgit2,evhan/libgit2,sygool/libgit2,maxiaoqian/libgit2,sygool/libgit2,oaastest/libgit2,JIghtuse/libgit2,jeffhostetler/public_libgit2,Corillian/libgit2,falqas/libgit2,swisspol/DEMO-libgit2,JIghtuse/libgit2,mrksrm/Mingijura,JIghtuse/libgit2,skabel/manguse,nokiddin/libgit2,Aorjoa/libgit2_maked_lib,yongthecoder/libgit2,iankronquist/libgit2,kissthink/libgit2,sim0629/libgit2,nacho/libgit2,since2014/libgit2,kissthink/libgit2,stewid/libgit2,sygool/libgit2,jamieleecool/ptest,Aorjoa/libgit2_maked_lib,ardumont/libgit2,amyvmiwei/libgit2,MrHacky/libgit2,falqas/libgit2,MrHacky/libgit2,Aorjoa/libgit2_maked_lib,claudelee/libgit2,jflesch/libgit2-mariadb,maxiaoqian/libgit2,whoisj/libgit2,leoyanggit/libgit2,saurabhsuniljain/libgit2,jeffhostetler/public_libgit2,kenprice/libgit2,jflesch/libgit2-mariadb,linquize/libgit2,zodiac/libgit2.js,Tousiph/Demo1,Corillian/libgit2,jamieleecool/ptest,Snazz2001/libgit2,maxiaoqian/libgit2,yongthecoder/libgit2,joshtriplett/libgit2,ardumont/libgit2,falqas/libgit2,zodiac/libgit2.js,iankronquist/libgit2,nokiddin/libgit2,linquize/libgit2,amyvmiwei/libgit2,KTXSoftware/libgit2,MrHacky/libgit2,mhp/libgit2,magnus98/TEST,t0xicCode/libgit2,linquize/libgit2,yongthecoder/libgit2,iankronquist/libgit2,nokiddin/libgit2,mhp/libgit2,rcorre/libgit2,magnus98/TEST,nacho/libgit2,Corillian/libgit2,sim0629/libgit2,yongthecoder/libgit2,yongthecoder/libgit2,mcanthony/libgit2,JIghtuse/libgit2,mingyaaaa/libgit2,mrksrm/Mingijura,jeffhostetler/public_libgit2,leoyanggit/libgit2,joshtriplett/libgit2,Tousiph/Demo1,ardumont/libgit2,spraints/libgit2,spraints/libgit2,Corillian/libgit2,mhp/libgit2,stewid/libgit2,yosefhackmon/libgit2,Tousiph/Demo1,linquize/libgit2,kenprice/libgit2,mrksrm/Mingijura,jflesch/libgit2-mariadb,Tousiph/Demo1,leoyanggit/libgit2,skabel/manguse,kenprice/libgit2,magnus98/TEST,t0xicCode/libgit2,yosefhackmon/libgit2,linquize/libgit2,nokiddin/libgit2,dleehr/libgit2,saurabhsuniljain/libgit2,KTXSoftware/libgit2,Aorjoa/libgit2_maked_lib,oaastest/libgit2,leoyanggit/libgit2,kenprice/libgit2,jeffhostetler/public_libgit2,nacho/libgit2,amyvmiwei/libgit2,swisspol/DEMO-libgit2,kissthink/libgit2,since2014/libgit2,jeffhostetler/public_libgit2,since2014/libgit2,Corillian/libgit2,falqas/libgit2,maxiaoqian/libgit2,claudelee/libgit2,mhp/libgit2,chiayolin/libgit2,sygool/libgit2,kissthink/libgit2,ardumont/libgit2,raybrad/libit2,chiayolin/libgit2,ardumont/libgit2,Snazz2001/libgit2,spraints/libgit2,whoisj/libgit2,raybrad/libit2,rcorre/libgit2,spraints/libgit2,since2014/libgit2,stewid/libgit2,dleehr/libgit2,jflesch/libgit2-mariadb,zodiac/libgit2.js,amyvmiwei/libgit2,zodiac/libgit2.js,sim0629/libgit2,iankronquist/libgit2,swisspol/DEMO-libgit2,whoisj/libgit2,falqas/libgit2,mcanthony/libgit2,mingyaaaa/libgit2,chiayolin/libgit2,sygool/libgit2,whoisj/libgit2,evhan/libgit2,MrHacky/libgit2,evhan/libgit2,oaastest/libgit2,kissthink/libgit2,stewid/libgit2,joshtriplett/libgit2,evhan/libgit2,amyvmiwei/libgit2,yosefhackmon/libgit2,Corillian/libgit2