Add gradle --warning-mode option for debugging

Author: p8

lib/motion/project/gradle.rb

@@ -208,7 +208,7 @@ def gradle_command
       end
 
       if ENV['MOTION_GRADLE_DEBUG']
-        "#{@gradle_path} --info"
+        "#{@gradle_path} --info --warning-mode all"
       else
         "#{@gradle_path}"
       end