Resharper Refactoring

Refactors code issues found under "Common Practices and Code
Improvements".
Refactor TimelineMouseSelection

Changes some documentation errors.
More Refactoring
Refactor Namespaces

Change namespaces to match directory paths.
Resharper Refactoring

Address issues found under "Constraints Violations".
Resharper Refactoring

Addresses issues under the "Language Usage Opportunities" section.
Resharper Refactoring

Address Issues found under "Potential Code Quality Issues".
Resharper Refactor

Remove redundant code.
Rename Project

Renames "Enact" to "Editor".
Add New Project to Solution

Adds the "Player" project, which will become the video player
application for EnACT.