Add getter & setter for ground overlay options
Add getter & setter for ground overlay options

radutopala/IvoryGoogleMapBundle,rasanga/IvoryGoogleMapBundle,egeloen/IvoryGoogleMapBundle,radutopala/IvoryGoogleMapBundle,egeloen/IvoryGoogleMapBundle,egeloen/IvoryGoogleMapBundle,yappabe/IvoryGoogleMapBundle,radutopala/IvoryGoogleMapBundle,rasanga/IvoryGoogleMapBundle,yappabe/IvoryGoogleMapBundle