Previously, we had 3 containers mapping ConVar flags for utilities, and none of them contained all flags. This refactor moved everything into a single container class where user can get strings by flags, or the other way around. The new class contains every flag. This also means that every flag can be used to list convars by flags using the command 'convar_findByFlags'. The 'ConVar_ParseFlagString' now also supports every flag. Code has been tested and confirmed to work as designed.
* modsystem v2 initial commit
* call CModSystem::Init
* clean up custom cvar value handling
* add mod script compiling support
* add error check to script rson loading
yes this error is a duplicate but this one exits the game
* fix typo
* fix compile error
