Added type-hinting on doAdd crossFK generated functions
Added type-hinting on doAdd crossFK generated functions

bjdelange/Propel,sh0dow/Propel,PatidarWeb/Propel,zachmay/Propel,bjdelange/Propel,halfer/Propel,halfer/Propel,AriaSystems/Propel,propelorm/Propel,adrianrusnarczyk/Propel,mhitza/Propel,AriaSystems/Propel,Egston/Propel,Egston/Propel,rozwell/Propel,rozwell/Propel,mhitza/Propel,gencer/Propel,adrianrusnarczyk/Propel,propelorm/Propel,tbl0605/Propel-pervasive,sh0dow/Propel,gencer/Propel,tbl0605/Propel-pervasive,PatidarWeb/Propel,zachmay/Propel