Add packaging processes for `SourceKittenFramework.framework` to sourcekitten target
Add packaging processes for `SourceKittenFramework.framework` to sourcekitten target

- Add a Copy File Build Phase that embedding frameworks into `SourceKittenFramework.framework`
- Add a Shell Script Build Phase that embedding Swift libraries into `SourceKittenFramework.framework`
  `swift-stdlib-tool` is called for copying Swift libraries that imitating usage by Xcode.

jpsim/SourceKitten,jpsim/SourceKitten,jpsim/SourceKitten,jpsim/SourceKitten,jpsim/SourceKitten