Update ModuleDirectory.md (#6665)
Update ModuleDirectory.md (#6665)

Added the mohiva/swagger-codegen-play-scala module and updated the URLs for Silhouette.
marcospereira/playframework,Shruti9520/playframework,Shruti9520/playframework,benmccann/playframework,hagl/playframework,marcospereira/playframework,ktoso/playframework,hagl/playframework,Shenker93/playframework,aradchykov/playframework,Shruti9520/playframework,wegtam/playframework,richdougherty/playframework,zaneli/playframework,zaneli/playframework,Shruti9520/playframework,rajeshpg/playframework,aradchykov/playframework,wegtam/playframework,mkurz/playframework,ktoso/playframework,benmccann/playframework,zaneli/playframework,wsargent/playframework,wsargent/playframework,benmccann/playframework,rajeshpg/playframework,playframework/playframework,ktoso/playframework,hagl/playframework,mkurz/playframework,playframework/playframework,benmccann/playframework,rajeshpg/playframework,hagl/playframework,rajeshpg/playframework,ktoso/playframework,Shenker93/playframework,Shenker93/playframework,marcospereira/playframework,playframework/playframework,mkurz/playframework,aradchykov/playframework,Shenker93/playframework,mkurz/playframework,marcospereira/playframework,richdougherty/playframework,richdougherty/playframework,wsargent/playframework,wegtam/playframework,richdougherty/playframework,zaneli/playframework,aradchykov/playframework,wsargent/playframework,wegtam/playframework