freeroam: Fix method of easily bypassing "Disable warp"

Before this fix, using /gp and copy-pasting coords to /sp in order to warp to players that used F1 "Disable warp", is a much faster and easier way to disturb players than manually locating them in map view. Also, in the latter case you can only spawn close to them, while that method allows you to spawn right on them, making it seem their "Disable warp" had no effect..

Author: Dutchman101

[gameplay]/freeroam/fr_client.lua

@@ -1260,10 +1260,17 @@ function getPosCommand(cmd, playerName)
 
 	if playerName then
 		player = getPlayerFromName(playerName)
+
 		if not player then
 			errMsg('There is no player named "' .. playerName .. '".')
 			return
 		end
+
+		if g_PlayerData[player].warping then
+			errMsg("You cannot get coordinates of a player that has disabled warping!")
+			return
+		end
+
 		playerName = getPlayerName(player)		-- make sure case is correct
 		sentenceStart = playerName .. ' is '
 	else