Mikecao Flight Versions Save

• Added ability to assign route aliases!
• Fixed multiline url issue related to #475 and #424

• Added new route grouping feature to group routes by a similar prefix
• Added a simple PdoWrapper class to interact with a database easier
• Maintained 100% unit test coverage.

This is now a major version update to Flight. Honestly not much has changed, but a few things have:

100% Code Coverage for all classes in the framework. Minor tweaks to framework to make it easier to unit test. Found an error with some View Template paths for Windows users that should be addressed. For all intents and purposes, this is still the same Flight framework with no major changes just yet. Moving forward, we're looking to keep parity with version 2 so upgrading is trivial.