Read the development region and known region from pbxproj

[e7711bbear]

developmentRegion = English;
knownRegions = (
                en,
                Base,
            );

are the keys we are interested in getting out of the *.xcodeproj/project.pbxproj

• It's necessary for completely new files which don't have any localization destinations.
• We would need to show it somehow in the details view.
• We would need to show that these files would be added to each languages.

[e7711bbear]

Finished the parsing of the pbxproj.
Need to display & handle cases such as:
1/ No pbxproj found
2/ Multiple pbxproj found

[e7711bbear]

Turns out that knownRegions is not a reliable way to get all available regions.
So I need to find something else.