v0.95 - More XML loading, fixes

- Changed layout XML importing from XmlReader to HTMLAgilityPack
- Now loads weapon mounts & gibs and saves them back out, but doesn't
draw / edit them yet.
- Added a 'Save Paths' button in the options - If you were pasting the
path into the textbox instead of using the browse button, they weren't
saving!
- Added an 'export all' button
- Added options to change the maxpower / health settings
- Imports shield size correctly now