This is mainly for new games which have been designed for hardware rendering.
Note that this does not remove the software renderer's code - all it does is to disable the vid_rendermode CVAR by turning it into a static constant with the value 4.
- changed default value for midi_config to empty string since gus is not working with sf2 file
- fixed SetupDMXGUS not loading lump correctly, wrong use of CheckNumForFullName
- midi_config default to empty string, since lzdoom.sf2 doesn't seem supported (distorted sound)
- added absolute paths to FZipPatReader so we can add custom patches to resource files by using gus_patchdir and/or ULTRADIR variable (some custom maps has custom patches that can be added this way without putting them inside the resource file or in the same folder of the configuration file)
- set timidity_reverb_level min value to 0 in menudef.txt, set to 9 by mistake?
src/common/menu/menudef.cpp:785:19: warning: comparison of integers of different signs: 'int' and 'unsigned int' [-Wsign-compare]
src/playsim/p_pspr.cpp:178:3: warning: field 'processPending' will be initialized after field 'HAlign' [-Wreorder]
Syntax: AddListMenu "MenuName" [<before|after> "SubMenuName"] { ... }
By default, new items will be added to the end of the menu. Specifying before/after allows inserting items before or after a specific submenu item.
