Add ped and car density slider to menu, remove dumb collision "optimization"

src/core/Game.cpp

@@ -373,7 +373,11 @@ bool CGame::Initialise(const char* datFile)
 	CPools::Initialise();
 
 #ifndef GTA_PS2
-	CIniFile::LoadIniFile();
+#ifdef PED_CAR_DENSITY_SLIDERS
+	// Load density values from gta3.ini only if our reVC.ini have them 0.6f
+	if (CIniFile::PedNumberMultiplier == 0.6f && CIniFile::CarNumberMultiplier == 0.6f)
+#endif
+		CIniFile::LoadIniFile();
 #endif
 #ifdef USE_TEXTURE_POOL
 	_TexturePoolsUnknown(false);