GetCVarFixed

fixed GetCVarFixed(str name)

fixed GetUserCVarFixed(int player, str name)

ZDoom doesn't provide a version of GetCVar that returns the value of a float cvar.

ACSUtils implements GetCVarFixed and GetUserCVarFixed by calling GetCVarString and parsing the number using ACSUtils number parsing functions.

The functions have an a_ prefix, because GDCC has its own unrelated GetCVarFixed.