Added support for RAK3401 + RAK13302 (RAK WisMesh 1W)

[Carl-McCoy]

Support for RAK3401 MCU with RAK13302 PA

Not ready to merge

https://store.rakwireless.com/products/wismesh-1w-booster-starter-kit

This is the first thing I've done involving platformio or RNode firmwares and I don't know what I'm doing.
Hopefully someone can spot any obvious issues here.

Firmware builds and is stable so far with atterman's latest filesystem commits.

    -DURTN_PATH_TABLE_MAX_RECS=25
    -DRNS_DEFAULT_ALLOCATOR=RNS_HEAP_ALLOCATOR
    -DRNS_CONTAINER_ALLOCATOR=RNS_HEAP_ALLOCATOR

Note to self: Clean/Update PlatformIO lib imports of microReticulum and microStore when merging changes.

Issues

• Provisioning after the firmware upload fails; Restarting board and provisioning manually works with the below commands.

  rnodeconf --product 10 --model 14 --hwrev 1 --rom /dev/ttyACM0
  rnodeconf --firmware-hash `rnodeconf -L /dev/ttyACM0 | grep "actual firmware hash" | awk '{print $7}'` /dev/ttyACM0`
  

• Currently matching the MeshCore setup, only using one SPI bus
  This should be fixed to allow use of GPS etc. on the second
• NFC pins left undefined

Uncertainties

1 ) Boards.h / platformio.ini - Not sure what the best method is to define the IDs, but this looked okay reusing 0x10 and incrementing. I'm still unsure where the BOARD_RAK3401 ID is used.

 #define PRODUCT_RAK4631     0x10
 #define BOARD_RAK4631       0x51
 #define MODEL_11            0x11 // RAK4631, 433 Mhz
 #define MODEL_12            0x12 // RAK4631, 868 Mhz
 #define BOARD_RAK3401       0x52 // RAK3401 + RAK13302 (nRF52840 + SX1262 + SKY66122 1W FEM)
 #define MODEL_13            0x13 // RAK3401 + RAK13302, 433 MHz
 #define MODEL_14            0x14 // RAK3401 + RAK13302, 868 MHz

2 ) boards/rak3401.json isn't/shouldn't be required and using 4631.json works. I had issues making it work again, left as 3401 board and variant for now.
I'm not sure what the right way to add the variant is, but tried a few, settling on this setup when it packaged with the rnode_firmware_rak4631.zip filename needed for rnodeconf.

3 ) Provisioning when uploading worked once that I saw. Unsure if it's a timing issue on startup (occasionally requires a reset and provisioning within the next ~5 seconds) or the platformio.ini board / variant settings