services: add adb

[CapacitorSet]

Emulates an Android device, exposing a fake shell (todo: implement an actual shell like ssh does?).

To test, adb connect 127.0.0.1, then adb -s 127.0.0.1 shell.

Fixes #340.

[codecov-io]

Codecov Report

❗ No coverage uploaded for pull request base (master@1968508). Click here to learn what that means.
The diff coverage is 0%.

@@            Coverage Diff            @@
##             master     #385   +/-   ##
=========================================
  Coverage          ?   43.04%           
=========================================
  Files             ?       72           
  Lines             ?     8437           
  Branches          ?        0           
=========================================
  Hits              ?     3632           
  Misses            ?     4389           
  Partials          ?      416

Impacted Files	Coverage Δ
services/adb.go	0% <0%> (ø)

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[nl5887]

Awesome!