added getInsertPermission method to EntityGrid, transfer readOnly property to opened dialogs if any
added getInsertPermission method to EntityGrid, transfer readOnly property to opened dialogs if any

WasimAhmad/Serenity,volkanceylan/Serenity,volkanceylan/Serenity,volkanceylan/Serenity,volkanceylan/Serenity,WasimAhmad/Serenity,volkanceylan/Serenity,WasimAhmad/Serenity,WasimAhmad/Serenity,WasimAhmad/Serenity