Hardware abstraction class (#2080)

* hardware abstraction class

* De Morgan

* Rename pc hardware class

* Fix sound card in controlsd

* Pc get sim info

* fix hardware in test

* two more

* No more random imei on android

* no randomness on android

* Need to return something that looks like imei for registration to work

* Return proper network strength

* Unused import

* Bug fixes + gpsd is only android
old-commit-hash: c7152d5419

release/files_common

@@ -19,6 +19,7 @@ common/.gitignore
 common/__init__.py
 common/android.py
 common/hardware.py
+common/hardware_base.py
 common/gpio.py
 common/realtime.py
 common/clock.pyx