dumb test harness py

If something is stupid but it works, it's not stupid

how:

Frame:

<STX>
{
    Type : harness::Enum::Events
    Data : [ <element for selected data type>, ]
}
<ETX>

Frames start with Frame enum
Fata is per enum
All data between <STX> abd <ETX> is Json
Binary data should be encoded (base64)
Partial frames can be added easilly

I considered protobuf, tlv and msgpack, protobuf ain't very easy when you want to have Any types inside, msgpack don't have schema. Json is super easy - json it is

In app:

bsp - UART3 added (can be USB, IP whatever really)
- STX signals application that old data have to be ignored
- ETX signals app to parse data
EventManager
- Informs on start of Eventmanager
- Informs about application focus change
- Reads emits fake key releases
test/*.py - test code for handling phone
- phone_start.py - wait till phone sends its on
- phone_unlock.py - unlock phone and show desktop
- switch_app.py - switch to sms app and back waiting for info on application focus change
- walk presses on arrow keys for ~30 min