Add more xmldoc to ManualInputManager hinting at press&release methods
Add more xmldoc to ManualInputManager hinting at press&release methods

ppy/osu-framework,smoogipooo/osu-framework,peppy/osu-framework,peppy/osu-framework,ppy/osu-framework,ZLima12/osu-framework,ppy/osu-framework,peppy/osu-framework,ZLima12/osu-framework,smoogipooo/osu-framework