Moving corlib files out of "System" directory into root

BeefLibs/corlib/src/IO/FileShare.bf

@@ -0,0 +1,44 @@
+// This file contains portions of code released by Microsoft under the MIT license as part
+// of an open-sourcing initiative in 2014 of the C# core libraries.
+// The original source was submitted to https://github.com/Microsoft/referencesource
+
+using System;
+
+namespace System.IO
+{
+    // Contains constants for controlling file sharing options while
+    // opening files.  You can specify what access other processes trying
+    // to open the same file concurrently can have.
+    //
+    // Note these values currently match the values for FILE_SHARE_READ,
+    // FILE_SHARE_WRITE, and FILE_SHARE_DELETE in winnt.h
+    //
+	public enum FileShare
+	{
+        /// No sharing. Any request to open the file (by this process or another
+        /// process) will fail until the file is closed.
+		None = 0,
+    
+        /// Allows subsequent opening of the file for reading. If this flag is not
+        /// specified, any request to open the file for reading (by this process or
+        /// another process) will fail until the file is closed.
+		Read = 1,
+    
+        /// Allows subsequent opening of the file for writing. If this flag is not
+        /// specified, any request to open the file for writing (by this process or
+        /// another process) will fail until the file is closed.
+		Write = 2,
+    
+        /// Allows subsequent opening of the file for writing or reading. If this flag
+        /// is not specified, any request to open the file for writing or reading (by
+        /// this process or another process) will fail until the file is closed.
+		ReadWrite = 3,
+
+        /// Open the file, but allow someone else to delete the file.
+		Delete = 4,
+
+        /// Whether the file handle should be inheritable by child processes.
+        /// Note this is not directly supported like this by Win32.
+		Inheritable = 0x10,
+	}
+}