add english translation of plugin dev for poi 5.0 release
add english translation of plugin dev for poi 5.0 release

gnattu/poi,nagatoyk/poi,gnattu/poi,syncsyncsynchalt/poi,yudachi/poi,nagatoyk/poi,PHELiOX/poi,syncsyncsynchalt/poi,KagamiChan/poi,KagamiChan/poi,yudachi/poi,poooi/poi,yyydao/poi,dushi792/poi,dushi792/poi,poooi/poi,syncsyncsynchalt/poi,syncsyncsynchalt/poi,yudachi/poi,poooi/poi,PHELiOX/poi,dkwingsmt/poi,dushi792/poi,poooi/poi,dkwingsmt/poi,yyydao/poi