Design abstraction for running some kind of automation for each parsed transaction

[albertusdev]

I think this app will be incredibly useful if we can run automation on it to help facilitate creating/building your own expense tracking solution which is out of scope from this micro-app:

1. Sending HTTP REST API for each new parsed transaction
   Use case: automatic expense tracking using Google Sheets

2. Sending BroadcastIntent or AIDL (https://developer.android.com/develop/background-work/services/aidl) to other apps