Fix case collision between FLAKE and Flake. (#52)

* Fix case collision between FLAKE and Flake.

* Keep only necessary changes of PR#52

Co-authored-by: Wolfgang Stöggl <c72578@yahoo.de>

CUETools.Codecs.Flake/MetadataType.cs

@@ -0,0 +1,45 @@
+namespace CUETools.Codecs.Flake
+{
+    public enum MetadataType
+    {
+        /// <summary>
+        /// <A HREF="../format.html#metadata_block_streaminfo">STREAMINFO</A> block
+        /// </summary>
+        StreamInfo = 0,
+
+        /// <summary>
+        /// <A HREF="../format.html#metadata_block_padding">PADDING</A> block
+        /// </summary>
+        Padding = 1,
+
+        /// <summary>
+        /// <A HREF="../format.html#metadata_block_application">APPLICATION</A> block 
+        /// </summary>
+        Application = 2,
+
+        /// <summary>
+        /// <A HREF="../format.html#metadata_block_seektable">SEEKTABLE</A> block
+        /// </summary>
+        Seektable = 3,
+
+        /// <summary>
+        /// <A HREF="../format.html#metadata_block_vorbis_comment">VORBISCOMMENT</A> block (a.k.a. FLAC tags)
+        /// </summary>
+        VorbisComment = 4,
+
+        /// <summary>
+        /// <A HREF="../format.html#metadata_block_cuesheet">CUESHEET</A> block
+        /// </summary>
+        CUESheet = 5,
+
+        /// <summary>
+        /// <A HREF="../format.html#metadata_block_picture">PICTURE</A> block
+        /// </summary>
+        Picture = 6,
+
+        /// <summary>
+        /// marker to denote beginning of undefined type range; this number will increase as new metadata types are added
+        /// </summary>
+        Undefined = 7
+    }
+}