remote hardware tests

[mkinney]

Fix #110
Fix #109

Note: The gpio_watch does not report the value immediately. It was taking 15-20 seconds for my test setup of 3 devices in same room.

% meshtastic --gpio-watch 0x200000 --dest '!f26682c0'
Connected to radio
Watching GPIO mask 0x200000 from !f26682c0. Press ctrl-c to exit
Received RemoteHardware typ=GPIOS_CHANGED, gpio_value=0 value=0
Received RemoteHardware typ=GPIOS_CHANGED, gpio_value=0 value=0
Received RemoteHardware typ=GPIOS_CHANGED, gpio_value=0 value=0
Received RemoteHardware typ=GPIOS_CHANGED, gpio_value=0 value=0
Received RemoteHardware typ=GPIOS_CHANGED, gpio_value=0 value=0
Received RemoteHardware typ=GPIOS_CHANGED, gpio_value=0 value=0
Received RemoteHardware typ=GPIOS_CHANGED, gpio_value=2097152 value=2097152
Received RemoteHardware typ=GPIOS_CHANGED, gpio_value=2097152 value=2097152
Received RemoteHardware typ=GPIOS_CHANGED, gpio_value=2097152 value=2097152
Received RemoteHardware typ=GPIOS_CHANGED, gpio_value=2097152 value=2097152

$ meshtastic --gpio-wrb 21 1 --dest '!f26682c0' --port /dev/ttyUSB0
Connected to radio
Writing GPIO mask 0x200000 with value 0x200000 to !f26682c0

[codecov]

Codecov Report

Merging #247 (66866a4) into master (592ecc9) will increase coverage by 0.92%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #247      +/-   ##
==========================================
+ Coverage   93.35%   94.27%   +0.92%     
==========================================
  Files          12       12              
  Lines        1866     1869       +3     
==========================================
+ Hits         1742     1762      +20     
+ Misses        124      107      -17     

Flag	Coverage Δ
unittests	94.27% <100.00%> (+0.92%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
meshtastic/__main__.py	99.33% <100.00%> (+2.82%)	⬆️
meshtastic/remote_hardware.py	100.00% <100.00%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 592ecc9...66866a4. Read the comment docs.