Initialize repository

Added basic info to get in game for like...August 2016 ;-;
It's not much but it's a start

RecRoomArchive.Models/API/Platform/PlatformMask.cs

@@ -0,0 +1,21 @@
+namespace RecRoomArchive.Models.API.Platform
+{
+    /// <summary>
+    /// The types of platforms that Rec Room has support for...as a mask!
+    /// </summary>
+    [Flags]
+    public enum PlatformMask
+    {
+        None = 0,
+        Steam = 1,
+        Oculus = 2,
+        PlayStation = 4,
+        Xbox = 8,
+        RecNet = 16,
+        IOS = 32,
+        GooglePlay = 64,
+        Standalone = 128,
+        Pico = 256,
+        All = -1
+    }
+}