Add support for Tasker automatization in the Android app

### Summary

Add support for [Tasker](https://tasker.joaoapps.com/) automation in the android app

### Motivation

The motivation for this is to allow full automatization of uploading files securely using Cryptomator. This could be automatically backing up your photos to Cryptomator every monday. Tasker allows for several triggers such as new file created, network state etc.

### Considered Alternatives

[Automate](https://llamalab.com/automate/) is also a popular solution for automating tasks.

### Additional Context
The UI could let people choose which vault to upload to and the path.

The preferred way to trigger external actions from Tasker is to write an [action plugin](https://tasker.joaoapps.com/plugins.html) which will then appear in the Plugins action category in Tasker.

A simpler way is to use the existing [AutoShare plugin](https://joaoapps.com/autoshare/intentbuilder/). This method is quicker but less flexible and requires AutoShare to be installed.

Link to [Tasker developer board.](https://groups.google.com/forum/#!forum/taskerdev)