Fix issue#7; Backport android-7; Support Intent-uri; Support onActivityResult

This is my android-7 backport that works on android-7 emulator and on my android-8 phone.

The new feature Intent-uri editing allows you to edit extras and flags.

With onActivityResult-support you can analyse the result of "send edited intent" via the share menue:

* OriginatorActivity -> resendIntentActivity->OriginatorActivity 
* has the same effect as
* OriginatorActivity -> IntentIntercept -> resendIntentActivity->intentIntercept->OriginatorActivity 

with

* OriginatorActivity -> IntentIntercept -> resendIntentActivity->intentIntercept->copyToClipboard

you get the text of the intent plus the result of resendIntentActivity

Note: i have removed the android-studio-iml files from the repository. so you better back them up before merging