Pinecil pd tweaking (#1272)

* Raise PD max to 21V

* gui -> settingsGUI

* VBus probe cache

* Rough pass PD capabilities display

* Cleanup build errors

* PD Debug menu working

* Update make_translation.py

* settingsGUI

* Update GUIThread.cpp

* Nicer debug prints

* Show VBus in PD debug

* Update GUIThread.cpp

* Update make_translation.py

* Add docs

* Build tweaks for TS80P 😢

* Show PPS ranges

Documentation/DebugMenu.md

@@ -40,7 +40,7 @@ This is the raw tip reading in μV. This can be used when assessing the calibrat
 
 ### CTip
 
-This is the tip temperature in degrees Celsius. 
+This is the tip temperature in degrees Celsius.
 This can be used with RTip for assessing temperature processing performance.
 
 ### CHan
@@ -48,11 +48,11 @@ This can be used with RTip for assessing temperature processing performance.
 This is the handle temperature in °C. This is used for cold junction compensation of the tip temperature.
 This is shown in degrees Celsius x10, so 200 == 20.0 °C
 
-### Vin 
+### Vin
 
 The input voltage as read by the internal ADC. Can be used to sanity check its being read correctly.
 
-### ACC 
+### ACC
 
 This indicates the accelerometer that is fitted inside the unit.
 
@@ -64,7 +64,7 @@ This indicates the accelerometer that is fitted inside the unit.
 - None detected -> running in fallback without movement detection
 - Scanning -> Still searching I2C for one
 
-### PWR 
+### PWR
 
 This indicates the current power source for the iron.
 This may change during power up as the sources are negotiated in turn.
@@ -76,13 +76,23 @@ This may change during power up as the sources are negotiated in turn.
 - If you successfully modified the Pinecil to support 24 V by cutting the trace line to Vbus, then 'PD No VBus' displays on screen.
 - Connect to any PD USB power to check Vbus status. It will not show any PD message when Pinecil is powered by DC port, QC, or USB 5 V (non PD).
 
-### Max 
+### Max
 
 This indicates the max temperature in degrees Celsius that the system estimates it can measure the tip reliably to.
 This is dependant on a few factors including the handle temperature so it can move around during use.
 
-
 ### Hall
 
 This appears if your device is capable of having a magnetic hall effect sensor installed (Pinecil).
 This shows the current field strength reading from the sensor. It can be used to check if the sensor is operational, and measure how strong the magnetic field is for diagnostics and optimal placement of magnets on a stand.
+
+# PD Debug menu
+
+On the Pinecil; if the iron is booted up while holding the front button (+); it will show an extra menu for inspecting USB-PD power adapters.
+
+The menu navigates like the debug menu, where pressing (+) cycles through elements, and (-) will exit the menu.
+
+First page shows the PD negotiation stage number; which can be used for diagnosing if PD is not working.
+After a few seconds or after PD negotiates (state above 5) it will show "No VBus" if the VBus mod is performed or "VBus" if the mod has not been done.
+
+Once negotiation is complete; the other screens will show the advertised readings for voltage and current of the proposals.