Minor cleanup
#39 Added method and tests to find root of config

Just cleans up code elsewhere.
#39 Replaced xml configs with json
Removed unused localization files
Removed unused german localization files
Renamed Config to XmlConfig
#39 Added additional RootOf overloads
#39 Replaced localization with JsonConfig
#39 Removed old xml localization files
Fixing errors with the fuzzy localization
#39 Replaced fuzzy requirement for xml config
#39 Started removing XElement utils
#39 Replaced xml game config with json
#39 Further removed XElement code/tests
#39 Removed XElement validator

I don't think this code was being used outside of unit tests though?
#39 Removed XElement extension from Procon.Net.Shared
#39 Removed XmlIgnore tags and XmlConfig