Move to new library model and view

- Add new listview control for library content
- Migrate library providers to containers
  - Cloud, Sqlite, Directories, Queue, History
- Migrate SideBar components to containers
  - Primatives, Text, Braille, ImageConverter
- Create new library container types
  - Zip files, Calibration parts, Printer SDCards
- Reduce leftnav to Library, Settings, Controls, Options
- Add DragDrop support for image content

Library/Interfaces/KnownLengthStream.cs

@@ -0,0 +1,95 @@
+/*
+Copyright (c) 2017, John Lewin
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+   list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright notice,
+   this list of conditions and the following disclaimer in the documentation
+   and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+The views and conclusions contained in the software and documentation are those
+of the authors and should not be interpreted as representing official policies,
+either expressed or implied, of the FreeBSD Project.
+*/
+
+using System;
+using System.IO;
+
+namespace MatterHackers.MatterControl.Library
+{
+	// Replace with KnownLength stream. Callers can 
+	public class KnownLengthStream : Stream
+	{
+		protected Stream BaseStream;
+
+		public KnownLengthStream(Stream sourceStream, long Length)
+		{
+			this.Length = Length;
+		}
+
+		public override bool CanRead => this.BaseStream.CanRead;
+
+		public override bool CanSeek => this.BaseStream.CanRead;
+
+		public override bool CanWrite => this.BaseStream.CanRead;
+
+		public override long Length { get; }
+
+		public override long Position
+		{
+			get { return this.BaseStream.Position; }
+			set { this.BaseStream.Position = value; }
+		}
+
+		public override void Flush()
+		{
+			this.BaseStream.Flush();
+		}
+
+		public override int Read(byte[] buffer, int offset, int count)
+		{
+			return this.BaseStream.Read(buffer, offset, count);
+		}
+
+		public override long Seek(long offset, SeekOrigin origin)
+		{
+			return this.BaseStream.Seek(offset, origin);
+		}
+
+		public override void SetLength(long value)
+		{
+			this.BaseStream.SetLength(value);
+		}
+
+		public override void Write(byte[] buffer, int offset, int count)
+		{
+			this.BaseStream.Write(buffer, offset, count);
+		}
+	}
+
+	public class StreamAndLength : IDisposable
+	{
+		public long Length { get; set; }
+		public Stream Stream { get; set; }
+
+		public void Dispose()
+		{
+			this.Stream?.Dispose();
+		}
+	}
+}