Add support for setting Sensors on Android Emulators

[vrunoa]

First step to adding support for setting sensor values on Android Emulators.

[jlipps]

nice! cc @isonic1

[isonic1]

Good stuff @vruno @mykola-mokhnach @jlipps. Looking forward to trying it out. I put the link below to the integration I made for this in case it's helpful for anyone.

https://github.com/isonic1/NTD/blob/master/android_sensor.rb

[vrunoa]

@isonic1 cool. The idea is to start adding this methods as commands on each of the clients, so everyone can use them, not just the people that know the adb/telnet. And adding an endpoint for each one of them.
Moving forward, more and more platforms are supporting this sensors and IMO we should have a well defined methods/endpoints, Im going to try to bring up a proposal that @jlipps encourage me to do a few years ago. SeleniumHQ/mobile-spec#6. Im going to start adding the new endpoints these days. Hope to hear feedback 😄