[Request]: allow to use Android's intent resolver with share_plus

### Plugin

share_plus

### Use case

Currently the `share_plus` plugin on Android always forces user to use the `Sharesheet` UI.

It works in many cases, however it does not allow user to select a default target for a given mimetype and then omit the intent selection for the following calls.

### Proposal

It would be great if the `share_plus` provided an option/flag to [use the Intent resolver](https://developer.android.com/training/sharing/send#using-android-intent-resolver) on Android.

So, the user can select desired app/intent and make it a default selection for the following calls.