SoftUART fixes and Power Supply State machine cleanup

Includes code for LGA80D monitoring (expert use only).

Granular control of Firefly devices

Can now turn on and off CDR, FF XMIT on a per-FF module basis. Also can read/write to arbitrary control byte of a FF.

More CI issues

Look at v0.20

Update for CI issues

look at v0.20

Boot loader updates and more logging, soft UART

In this release

1. The boot loader has a CLI interface to force an update. As of now the boot loader either points to the front panel UART or the ZYNQ uart, as defined at compile-time. The repo defaults to front panel
2. More logging of various faults in the internal EEPROM for detection after crash or reboot
3. Soft UART for data transfer to the Zynq, for a lot of monitoring information on the CM

new readline, error logging

Temperature messages for error buffer (#45)

* choose number of entries for buffer_out
* firefly configuration in id block
* eeprom_read and one other little issue
* print temp messages
* device-specific alarm temperatures

Fixed ADC channel assignment bug

Fixes ADC channel reading bug.

updated I2C slave

Add protection to the I2C slave to ensure 0xFF is sent when supplies are powered off.

test CI v2

v0.16

2nd attempt for release integration (#37)

test new CI

v0.15

include release deployments into CI build process (#36)