Implement System.Collections.Generic in TinyCoreLib

[AnErrupTion]

Hi!

This PR implements all of the classes in the System.Collections.Generic found in Mosa.Korlib, namely:

• EqualityComparer
• KeyValuePair
• LinkedList
• LinkedListNode
• List
• Queue
• Stack

It also removes some internal EqualityComparer and Comparer classes that aren't exposed in the public API, but adds its own internal fields, methods & classes in the Internal namespace.

Lastly, it creates a new Mosa.UnitTests.TinyCoreLib project, which adds unit tests for the following classes:

• EqualityComparer
• LinkedList
• List
• Queue
• Stack

[charsleysa]

LGTM