make get_name() mandatory for Subcommand classes
make get_name() mandatory for Subcommand classes

shawnhooper/wp-cli,aaemnnosttv/wp-cli,rodrigoprimo/wp-cli,miya0001/wp-cli,rohmann/wp-cli,pressednet/wp-cli,nyordanov/wp-cli,Yas3r/wp-cli,heiglandreas/wp-cli,2ndkauboy/wp-cli,anttiviljami/wp-cli,ahmadawais/wp-cli,macbookandrew/wp-cli,2ndkauboy/wp-cli,shawnhooper/wp-cli,boonebgorges/wp-cli,here/wp-cli,gedex/wp-cli,gitlost/wp-cli,a7127cff69cab32e5c4723e8446e21c4b7325dc/wp-cli,boonebgorges/wp-cli,anttiviljami/wp-cli,gitlost/wp-cli,rmccue/wp-cli,duncanjbrown/wp-cli,dpq/wp-cli,macbookandrew/wp-cli,rodrigoprimo/wp-cli,borekb/wp-cli,aaemnnosttv/wp-cli,GaryJones/wp-cli,pressednet/wp-cli,spiritedmedia/wp-cli,JohnDittmar/wp-cli,ahmadawais/wp-cli,miya0001/wp-cli,trepmal/wp-cli,nyordanov/wp-cli,gedex/wp-cli,xwp/wp-cli,blueblazeassociates/wp-cli,gitlost/wp-cli,dpq/wp-cli,spiritedmedia/wp-cli,xwp/wp-cli,aaemnnosttv/wp-cli,staylor/wp-cli,Yas3r/wp-cli,Yas3r/wp-cli,rohmann/wp-cli,GaryJones/wp-cli,rmccue/wp-cli,rohmann/wp-cli,dpq/wp-cli,JohnDittmar/wp-cli,duncanjbrown/wp-cli,trepmal/wp-cli,heiglandreas/wp-cli,rodrigoprimo/wp-cli,here/wp-cli,xwp/wp-cli,macbookandrew/wp-cli,duncanjbrown/wp-cli,boonebgorges/wp-cli,blueblazeassociates/wp-cli,a7127cff69cab32e5c4723e8446e21c4b7325dc/wp-cli,anttiviljami/wp-cli,borekb/wp-cli,pressednet/wp-cli,2ndkauboy/wp-cli,ahmadawais/wp-cli,staylor/wp-cli,nyordanov/wp-cli,borekb/wp-cli,shawnhooper/wp-cli,miya0001/wp-cli,JohnDittmar/wp-cli,blueblazeassociates/wp-cli,staylor/wp-cli,spiritedmedia/wp-cli,trepmal/wp-cli,GaryJones/wp-cli,gedex/wp-cli,a7127cff69cab32e5c4723e8446e21c4b7325dc/wp-cli