AGI: Adding detection for the Ultimate AGI Fangame Demo.
BACKENDS: Remove OpenGL and OpenGL SDL backend.

This breaks our Tizen port.
BUILD: Mark ZVision as requiring freetype2/16bit
ZVISION: Consistently use the type of the state map

Should fix the AmigaOS4 build
ZVISION: Make the line height be an int
WINTERMUTE: Remove useless __inline
ZVISION: Attempt to fix compilation on AmigaOS4
FULLPIPE: Plug resource leak. CID 1107570
DRACI: Fix negative array index read. CID 1003548
DRACI: Initialized class variables. CID 1003405
DRASCULA: Initialize class variables. CID 1003403
DREAMWEB: Initialize few more class variables. CID 1003402
TOUCHE: Initialize uninit variables. CID 1002423
FULLPIPE: Implement MovGraph2::findMinPath()
TSAGE: Bugfixes for voice playback to work in conversations
FULLPIPE: Implement MovGraph2::buildMovInfo1SubItems()
FULLPIPE: Implement MovGraph2::findLink()
TSAGE: Fixes for allowing selecting speech in the ScummVM options dialog
FULLPIPE: Fix crash in MovGraph2::buildMovInfo1SubItems()
OPENGL: Add new generic OpenGL (ES) backend.

This backend is based on ideas of the old OpenGL backend, of the Android GL
backend and of the iPhone GL backend.