Built frameworks miss some entities

[ghost]

Hi!

For now it is impossible to install your library via CocoaPods even with solved transitive dependencies issue.

Instead, I've built the framework directly and attached it to project, but there were not compiled some important entities like "BTCTransactionBuilder".

Are there any workarounds over all these issues? This library is cool, but installation is very dorky.

[devSC]

@PetroShylaiev you can move them to public in framework target.