Profile configurations - Publicly expose profile ID

Device visualizer - Hit test on LED geometry
Layouts - Reverted layout rounding change

src/Artemis.Core/Models/ProfileConfiguration/ProfileConfiguration.cs

@@ -107,6 +107,11 @@ namespace Artemis.Core
         /// </summary>
         public ProfileConfigurationHotkey? DisableHotkey { get; set; }
 
+        /// <summary>
+        ///     Gets the ID of the profile of this profile configuration
+        /// </summary>
+        public Guid ProfileId => Entity.ProfileId;
+
         /// <summary>
         ///     Gets the profile of this profile configuration
         /// </summary>