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

* Split GM commands into their own files

* Code cleanup

zone/gm_commands/ipban.cpp

@@ -0,0 +1,21 @@
+#include "../client.h"
+
+void command_ipban(Client *c, const Seperator *sep)
+{
+	if (sep->arg[1] == 0) {
+		c->Message(Chat::White, "Usage: #ipban [xxx.xxx.xxx.xxx]");
+	}
+	else {
+		if (database.AddBannedIP(sep->arg[1], c->GetName())) {
+			c->Message(
+				Chat::White,
+				"%s has been successfully added to the banned_ips table by %s",
+				sep->arg[1],
+				c->GetName());
+		}
+		else {
+			c->Message(Chat::White, "IPBan Failed (IP address is possibly already in the table?)");
+		}
+	}
+}
+