feat: add smartcmd dedicated server

major bug: when connecting to the server a second time, it gets softlocked and keeps repeating ticking connection A\n in debug logs until it times out.

Minecraft.Server/Console/commands/gamemode/CliCommandGamemode.h

@@ -0,0 +1,18 @@
+#pragma once
+
+#include "../IServerCliCommand.h"
+
+namespace ServerRuntime
+{
+	class CliCommandGamemode : public IServerCliCommand
+	{
+	public:
+		const char *Name() const override;
+		std::vector<std::string> Aliases() const override;
+		const char *Usage() const override;
+		const char *Description() const override;
+		bool Execute(const ServerCliParsedLine &line, ServerCliEngine *engine) override;
+		void Complete(const ServerCliCompletionContext &context, const ServerCliEngine *engine, std::vector<std::string> *out) const override;
+	};
+}
+