Scorpio offers to teach crossbow multiple times

[AmProsius]

Describe the bug
Scorpio offers to teach crossbow level 1 multiple times, even if the player already gained that skill.

Expected behavior
Scorpio no longer offers to teach crossbow level 1 if the player already gained that skill.

Steps to reproduce the issue

1. Learn crossbow level 1 (from him).
2. Save the game.
3. Load the save.
4. Scorpio offers to teach crossbow level 1 again.

[AmProsius]

gothic-1-community-patch/scriptbase/_work/Data/Scripts/Content/Story/Missions/DIA_GRD_205_Scorpio.d

Lines 173 to 182 in 1301413

	FUNC int GRD_205_Scorpio_CROSSBOW_Condition()
	{
	if (Kapitel >= 4)
	|| (Npc_GetTrueGuild (hero) == GIL_GRD)
	{
	return TRUE;
	};
	};

changed to

FUNC int  GRD_205_Scorpio_CROSSBOW_Condition()
{
    if ((Kapitel >= 4) || (Npc_GetTrueGuild (hero) == GIL_GRD))
    && (Npc_GetTalentSkill(hero, NPC_TALENT_CROSSBOW) < 1)
    {
        return TRUE;
    };

};

[AmProsius]

Similar to #25.

[szapp]

I updated the fix and test with the new symbol functions. All good, test passes!