Remove FCVAR_RELEASE
WrapepdPropertySet provides a Getter, to get the current value
Include all attributes with wrapped properties, no just the codegen attributes
ConvarSystem.SetValue always takes a string value instead of object
Only set native convar if value is different
Move sv_cheats to game code, so it gets codegen
Always register sbox.game assembly with convar system
Only set managed convar value if value changed
Placeholder to return replicated values for convar
Call ConVarSystem.OnConVarChanged when managed convar changes
Native convars call OnConVarChanged
Rename ConvarFlags to ConVarFlags