feat(cvar): add LookupRegistered method

src/console/CVar.cpp

@@ -33,6 +33,19 @@ CVar* CVar::Lookup(const char* name) {
         : nullptr;
 }
 
+CVar* CVar::LookupRegistered(const char* name) {
+    auto var = CVar::Lookup(name);
+    if (!var) {
+        return nullptr;
+    }
+
+    if (var->m_flags >= 0 && !(var->m_flags & 0x80)) {
+        return nullptr;
+    }
+
+    return var;
+}
+
 CVar* CVar::Register(const char* name, const char* help, uint32_t flags, const char* value, bool (*fcn)(CVar*, const char*, const char*, void*), uint32_t category, bool a7, void* arg, bool a9) {
     CVar* var = CVar::s_registeredCVars.Ptr(name);
 

src/console/CVar.hpp

@@ -16,6 +16,7 @@ class CVar : public TSHashObject<CVar, HASHKEY_STRI> {
         static void Initialize();
         static int32_t Load(const char* filename);
         static CVar* Lookup(const char* name);
+        static CVar* LookupRegistered(const char* name);
         static CVar* Register(const char*, const char*, uint32_t, const char*, bool (*)(CVar*, const char*, const char*, void*), uint32_t, bool, void*, bool);
 
         // Member variables