* use one central unified log with channels/priorities ad-hoc listener registration and de-registration
* disable buffering by default
* add multi-threaded ringbuffer implementation
* use buffered listener for the gui (using the ringbuffer)
make precompiled header slimmer under Linux to increase CI and dev-machine build-times
make sure unused modules don't compile
add unused modules to the VS project to easier keep track of them
* Fixed tabs/spaces problem in cellSysutil.h too.
NOTE: The problem with cellFont (crash on line 604) has been fixed, but
for a high price: There is now a huge memory leak when a NULL pointer is
passed to cellFontRenderSurfaceInit.
* Moved RSXTexture from RSXThread.h to RSXTexture.h
* Renamed RSXTexture::Getmipmap to RSXTexture::GetMipmap
* Used more GCM texture format constants in GLGSRender.h
* PKG Loader: Added an "Overwrite?" dialog in case the folder
dest+titleID (i.e. "/dev_hdd0/game/"+titleID) already exists. Note that
in that case, the game won't be installed regardless of the option you
choose on the dialog.
* Fixed identation inconsistency after last merge.
* Replaced uint32_t with u32 in LinearToSwizzleAddress.
* Replaced hardcoded values with defined GCM constants (in Emu/GS/GCM.h)
in some switch statements.
This commit won't produce any changes in the RPCS3 executable. It's just
to make the code easier to read.