fix a bug in (jda-xcode-build)

* the following xcodebuild error message is displayed:
  xcodebuild: error: option '-activeconfiguration' is no longer
  supported
  xcodebuild: error: option '-activetarget is no longer supported

* add (jda-xcode-get-xcodeproj-info-plist) function to get the
  targets, configurations and schemes in a project or the schemes in a
  workspace