"tns library add ios" does not build correct relative paths to referenced frameworks for mdgenerator

[ginev]

When using tns library add ios the added library is not correctly resolved by the metadata generator because it receives a faulty path to the referenced framework.

[PanayotCankov]

For iOS you should be able to open the Xcode project in platforms/ios and edit the framework search paths by hand to use absolute paths instead of relative paths.

[Fatme]

This should be tested with latest ios-runtime from release branch.

[EddyVerbruggen]

Just a heads-up: even with PR #266 applied locally it didn't resolve my framework. I had to add the full path instead, like documented here.