Updated the Plugin API documentation with descriptions of available methods plugins can call provided by the core.
Updated the Plugin API documentation with descriptions of available
methods plugins can call provided by the core.

vizorvr/patches,vizorvr/vizor,vizorvr/vizor-create,vizorvr/vizor,beni55/engi,engijs/engi,vizorvr/patches,vizorvr/patches,engijs/engi,vizorvr/vizor-create,vizorvr/patches,vizorvr/patches,vizorvr/vizor-create,vizorvr/vizor,engijs/engi,beni55/engi,beni55/engi