Get rid of check for stock wheels in Menyoo Customs -> Paints -> Wheels

[metoxys]

Trying to paint the rims when using stock rims results in the message Colours cannot be applied to stock wheels..

By now, there are enough vehicles that have paintable rims. Moving back out of Paints and to Wheels -> Color is just tedious. Letting the user modify the color with the warning "Colours cannot always be applied to stock wheels." is enough.

The fix is simple, just modify the part at https://github.com/MAFINS/MenyooSP/blob/6901d6a93bf1245258788197927d83c3c787408a/Solution/source/Submenus/VehicleModShop.cpp#L1941

		if (set_mspaints_index_4) {
			ms_curr_paint_index = 4;
			if (GET_VEHICLE_MOD(Static_12, VehicleMod::FrontWheels) > -1)
				Menu::SetSub_new(SUB::MSPAINTS2_WHEELS);
			else
				Game::Print::PrintBottomCentre("~r~Error:~s~ Colours cannot be applied to stock wheels.");
		}