Added canUse virtual method

[Dliix66]

This PR adds the CBaseEntity_TakeDamageOldFunc virtual function with its signature in gamedata.json

Usage:

public void Load(bool hotReload)
{
  VirtualFunctions. CBaseEntity_TakeDamageOldFunc.Hook(OnWeaponCanUsePre, HookMode.Pre);
{


private HookResult OnWeaponCanUse(DynamicHook hook)
{
    var weaponservices = hook.GetParam<CCSPlayer_WeaponServices>(0);
    var clientweapon = hook.GetParam<CBasePlayerWeapon>(1);

    var client = new CCSPlayerController(weaponservices!.Pawn.Value.Controller.Value!.Handle);

    if (clientweapon.DesignerName == "weapon_awp")
    {
        client.PrintToChat("No awp for you :v ");
        hook.SetReturn(false);
        return HookResult.Handled;
    }

    return HookResult.Continue;
}