Cleaned up eglbringuptest code
- Refactored CEGLRendering construction to separate EGL and VG setup
- Consistently check EGL and VG errors after each API call
- Standardised RDebug::Printf statements to all start with [EBT]
- Removed unused libraries from MMP file
- Removed unused openvgengine.h
- Removed various unused member variables
- Removed unused CWsCanvas class
component graphics_eglswitch
source \sf\os\graphics\egl\eglswitch
binary \sf\os\graphics\egl\eglswitch\group all
exports \sf\os\graphics\egl\eglswitch\group
notes_source \component_defs\release.src
ipr E