Add -disable-assert to disable the code generation of the built-in run-time 'assert' procedure

src/build_settings.cpp

@@ -91,6 +91,7 @@ struct BuildContext {
 	String ODIN_VERSION; // compiler version
 	String ODIN_ROOT;    // Odin ROOT
 	bool   ODIN_DEBUG;   // Odin in debug mode
+	bool   ODIN_DISABLE_ASSERT; // Whether the default 'assert' et al is disabled in code or not
 
 	TargetEndianKind endian_kind;