[Commands] Consolidate #set-like commands into a singular #set command (#3486)

* First push

* Final push.

* Consolidate zone commands in to one.

* Update command.cpp

* Remove debug messages.

* Test

* Add support for sub command status levels.

* Update command.cpp

* Update client.cpp

* Update database_update_manifest.cpp

* Update version.h

* Update item.cpp

* Update version.h

* Update database_update_manifest.cpp

* Fix command arguments.

* Help message.

* Update command.cpp

* Do DB injection/deletion

* Indent

* Update server_locked.cpp

* Update set.cpp

* Lock aliases

* Update command_subsettings_repository.h

* Update set.cpp

* Fix

---------

Co-authored-by: Akkadius <akkadius1@gmail.com>

zone/gm_commands/set/invulnerable.cpp

@@ -0,0 +1,32 @@
+#include "../../client.h"
+
+void SetInvulnerable(Client *c, const Seperator *sep) {
+	const auto arguments = sep->argnum;
+	if (arguments < 2) {
+		c->Message(Chat::White, "Usage: #set invulnerable [on|off]");
+		return;
+	}
+
+	auto t = c;
+	if (c->GetTarget() && c->GetTarget()->IsClient()) {
+		t = c->GetTarget()->CastToClient();
+	}
+
+	const bool invulnerable = Strings::ToBool(sep->arg[2]);
+
+	t->SetInvul(invulnerable);
+
+	const uint32 account_id = t->AccountID();
+
+	database.SetGMInvul(account_id, invulnerable);
+
+	c->Message(
+		Chat::White,
+		fmt::format(
+			"{} {} now {}vulnerable.",
+			c->GetTargetDescription(t, TargetDescriptionType::UCYou),
+			c == t ? "are" : "is",
+			invulnerable ? "in" : ""
+		).c_str()
+	);
+}