[GM Commands] Split GM Commands Into Separate Files (#1766)

* Split GM commands into their own files

* Code cleanup

zone/gm_commands/unscribespell.cpp

@@ -0,0 +1,62 @@
+#include "../client.h"
+
+void command_unscribespell(Client *c, const Seperator *sep)
+{
+	uint16 spell_id  = 0;
+	uint16 book_slot = -1;
+	Client *t        = c;
+
+	if (c->GetTarget() && c->GetTarget()->IsClient() && c->GetGM()) {
+		t = c->GetTarget()->CastToClient();
+	}
+
+	if (!sep->arg[1][0]) {
+		c->Message(Chat::White, "FORMAT: #unscribespell <spellid>");
+		return;
+	}
+
+	spell_id = atoi(sep->arg[1]);
+
+	if (IsValidSpell(spell_id)) {
+		book_slot = t->FindSpellBookSlotBySpellID(spell_id);
+
+		if (book_slot >= 0) {
+			t->UnscribeSpell(book_slot);
+
+			t->Message(Chat::White, "Unscribing spell: %s (%i) from spellbook.", spells[spell_id].name, spell_id);
+
+			if (t != c) {
+				c->Message(
+					Chat::White,
+					"Unscribing spell: %s (%i) for %s.",
+					spells[spell_id].name,
+					spell_id,
+					t->GetName());
+			}
+
+			LogInfo("Unscribe spell: [{}] ([{}]) request for [{}] from [{}]",
+					spells[spell_id].name,
+					spell_id,
+					t->GetName(),
+					c->GetName());
+		}
+		else {
+			t->Message(
+				Chat::Red,
+				"Unable to unscribe spell: %s (%i) from your spellbook. This spell is not scribed.",
+				spells[spell_id].name,
+				spell_id
+			);
+
+			if (t != c) {
+				c->Message(
+					Chat::Red,
+					"Unable to unscribe spell: %s (%i) for %s due to spell not scribed.",
+					spells[spell_id].name,
+					spell_id,
+					t->GetName());
+			}
+		}
+	}
+}
+