unittests: break up individual ELF files, fix Relocs test, make pltgot test (optional)
unittests: break up individual ELF files, fix Relocs test, make pltgot test (optional)

cmaruti/vivisect,bat-serjo/vivisect,vivisect/vivisect,bat-serjo/vivisect,atlas0fd00m/vivisect,cmaruti/vivisect,atlas0fd00m/vivisect,bat-serjo/vivisect,atlas0fd00m/vivisect,cmaruti/vivisect,vivisect/vivisect,vivisect/vivisect