add supported implementations
add supported implementations

sandan/sqlalchemy,davidfraser/sqlalchemy,itkovian/sqlalchemy,inspirehep/sqlalchemy,276361270/sqlalchemy,davidfraser/sqlalchemy,robin900/sqlalchemy,bootandy/sqlalchemy,Cito/sqlalchemy,Akrog/sqlalchemy,alex/sqlalchemy,brianv0/sqlalchemy,wfxiang08/sqlalchemy,brianv0/sqlalchemy,dstufft/sqlalchemy,dstufft/sqlalchemy,halfcrazy/sqlalchemy,WinterNis/sqlalchemy,graingert/sqlalchemy,276361270/sqlalchemy,wujuguang/sqlalchemy,hsum/sqlalchemy,hsum/sqlalchemy,sqlalchemy/sqlalchemy,Akrog/sqlalchemy,EvaSDK/sqlalchemy,graingert/sqlalchemy,olemis/sqlalchemy,elelianghh/sqlalchemy,bootandy/sqlalchemy,zzzeek/sqlalchemy,EvaSDK/sqlalchemy,inspirehep/sqlalchemy,WinterNis/sqlalchemy,olemis/sqlalchemy,j5int/sqlalchemy,ThiefMaster/sqlalchemy,wfxiang08/sqlalchemy,halfcrazy/sqlalchemy,sandan/sqlalchemy,davidjb/sqlalchemy,bdupharm/sqlalchemy,pdufour/sqlalchemy,elelianghh/sqlalchemy,itkovian/sqlalchemy,epa/sqlalchemy,Cito/sqlalchemy,robin900/sqlalchemy,ThiefMaster/sqlalchemy,alex/sqlalchemy,monetate/sqlalchemy,davidjb/sqlalchemy,bdupharm/sqlalchemy,wujuguang/sqlalchemy,Cito/sqlalchemy,monetate/sqlalchemy,alex/sqlalchemy,j5int/sqlalchemy,epa/sqlalchemy,pdufour/sqlalchemy