Allow loading of uncompressed rcnet file to allow version control tools to work nicely w/ ReClass.NET files

[dschu012]

Redo of #227 cleaned up w/o the unnecessary changes git added.

When working on rcnet files w/ multiple people, right now it is impossible to see changes from version to version since they are a zip archive. This PR is an attempt at allowing a rcnetxml to be Saved/Loaded with the raw XML to allow version tracking tools like git to work nicely w/ the files.