[Commands] Cleanup #level Command. (#2203)

- Cleanup messages and logic.
- Breakout #level into its own command file.

zone/gm_commands/level.cpp

@@ -0,0 +1,51 @@
+#include "../client.h"
+
+void command_level(Client *c, const Seperator *sep)
+{
+	int arguments = sep->argnum;
+	if (!arguments || !sep->IsNumber(1)) {
+		c->Message(Chat::White, "Usage: #level [Level]");
+		return;
+	}
+
+	auto target = c->GetTarget();
+	if (!target) {
+		c->Message(Chat::White, "You must have a target to use this command.");
+		return;
+	}
+	
+	auto level = static_cast<uint8>(std::stoul(sep->arg[1]));
+	auto max_level = static_cast<uint8>(RuleI(Character, MaxLevel));
+
+	if (c->Admin() < RuleI(GM, MinStatusToLevelTarget)) {
+		c->Message(Chat::White, "Your status is not high enough to change another person's level.");
+		return;
+	}
+
+	if (
+		level > max_level &&
+		c->Admin() < commandLevelAboveCap
+	) {
+		c->Message(
+			Chat::White,
+			fmt::format(
+				"Level {} is above the Maximum Level of {} and your status is not high enough to go beyond the cap.",
+				level,
+				max_level
+			).c_str()
+		);
+		return;
+	}
+
+	target->SetLevel(level, true);
+	if (target->IsClient()) {
+		target->CastToClient()->SendLevelAppearance();
+
+#ifdef BOTS
+		if (RuleB(Bots, BotLevelsWithOwner)) {
+			Bot::LevelBotWithClient(target->CastToClient(), level, true);
+		}
+#endif
+
+	}
+}