Implemented new sign API methods and finished up the sign system of Gamegine.
Fix implemented API methods.
Added 'gameginesign' command
Updated interact delay to be tick-based, added a config option for InSigns support, and added a 'Formats' section for some default sign types in Gamegine.
Updated project settings.  Updated version to [1.0.0-SNAPSHOT] instead of [1.0-SNAPSHOT] to follow Semantic Versioning guidelines.