Add checks to projectile packet to prevent client crashing.

(out of range and float NaN issue)

TShockAPI/ConfigFile.cs

@@ -93,6 +93,7 @@ namespace TShockAPI
         public string TileKillAbuseReason = "Tile Kill abuse ({0})";
         public string HardcoreBanReason = "Death results in a ban";
         public string HardcoreKickReason = "Death results in a kick";
+        public string ProjectileAbuseReason = "Projectile abuse";
 
         public bool EnableDNSHostResolution;