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

* Split GM commands into their own files

* Code cleanup

zone/gm_commands/wp.cpp

@@ -0,0 +1,51 @@
+#include "../client.h"
+
+void command_wp(Client *c, const Seperator *sep)
+{
+	auto command_type = sep->arg[1];
+	auto grid_id      = atoi(sep->arg[2]);
+	if (grid_id != 0) {
+		auto pause    = atoi(sep->arg[3]);
+		auto waypoint = atoi(sep->arg[4]);
+		auto zone_id  = zone->GetZoneID();
+		if (strcasecmp("add", command_type) == 0) {
+			if (waypoint == 0) { // Default to highest if it's left blank, or we enter 0
+				waypoint = (content_db.GetHighestWaypoint(zone_id, grid_id) + 1);
+			}
+
+			if (strcasecmp("-h", sep->arg[5]) == 0) {
+				content_db.AddWP(c, grid_id, waypoint, c->GetPosition(), pause, zone_id);
+			}
+			else {
+				auto position = c->GetPosition();
+				position.w = -1;
+				content_db.AddWP(c, grid_id, waypoint, position, pause, zone_id);
+			}
+			c->Message(
+				Chat::White,
+				fmt::format(
+					"Waypoint {} added to grid {} with a pause of {} {}.",
+					waypoint,
+					grid_id,
+					pause,
+					(pause == 1 ? "second" : "seconds")
+				).c_str()
+			);
+		}
+		else if (strcasecmp("delete", command_type) == 0) {
+			content_db.DeleteWaypoint(c, grid_id, waypoint, zone_id);
+			c->Message(
+				Chat::White,
+				fmt::format(
+					"Waypoint {} deleted from grid {}.",
+					waypoint,
+					grid_id
+				).c_str()
+			);
+		}
+	}
+	else {
+		c->Message(Chat::White, "Usage: #wp [add|delete] [grid_id] [pause] [waypoint_id] [-h]");
+	}
+}
+