added build.gradle with documentation target
added build.gradle with documentation target

1yvT0s/DTFoundation,SanjoDeundiak/DTFoundation,nrcmedia/DTFoundation,devontech/DTFoundation,Cocoanetics/DTFoundation,z8927623/DTFoundation,vlondon/DTFoundation,JasperYanky/DTFoundation,ywzw2013/DTFoundation,sbausis/DTFoundation,SanjoDeundiak/DTFoundation,programming086/DTFoundation,ShengQiangLiu/DTFoundation,JasperYanky/DTFoundation