spike for single showcase app for iOS

Why

See the parent epic

What

Investigate the possible options to use a single app for development and release purpose. The solution should support:

• easy development process using the local SDK repo. Developers should be able to debug the SDK code using the sample app.
• easy process to test the released version of the SDKs.

These process should be documented as part of the investigation.

How

One possible solution is to use different build targets (maybe using different xcode project for each target if we have to ) in the Podfile. Each target will have different dependencies.

If this option doesn't satisfy the requirement, the fallback solution is to keep both apps in place, but create some automation to copy code from one to another so that developers don't need to write the same code twice.