MP1-4299 : fixed error in PlaybackStateChanged after used F7/F8 for previous/next playing title.
MP1-4299 : Remove LoadLibrary and use checking Exports without load a library to bypass invalid DLL's, now work to all other PluginTypes too.
MP1-4299: Cast IWMPEffects in to IWMPEffects2 so plugin supports only IWMPEffects no longer load in configuration Dialog (this Plugins not work in MP)
Fork : Add LED.
Merge remote-tracking branch 'remotes/upstream/MP1-4299-FEAT-Change_of_Music_Visualisation_in_Fullscreen' into 1.6.0Fork-BDJ

Conflicts:
	mediaportal/MediaPortal.Base/bass_vis.dll