Glasgow Embedded / Glasgow - History

software: include FX2 firmware in the repository.

This has several significant benefits:
* End users no longer have to install sdcc, which can be difficult
on Windows, and still adds complexity elsewhere.
* Updating a source checkout is simplified, and firmware/software
mismatch is no longer possible.
* setup.py is simplified, and the odd breakage we had in the past
is no longer possible. It will also be easier to convert it to
the declarative format in the future.

cli: fix intermittent analyzer error.

Due to a logic error, sometimes analyzer would crash with a message
similar to:

vcd.writer.VCDPhaseError: Out of order timestamp: 171587604

applet.sensor.pmsx003: add documentation references.

applet.sensor.pmsx003: unmark as preview.

Also, verified that it works fine with PMS7003.

CI: use YoWASP instead of custom Yosys/nextpnr build scripts.

applet.interface.analyzer: fix crash on ^C if no data was written.

applet.interface.analyzer: add --pull-ups and --pull-downs options.

support.data_logger: fix edge cases in influxdb argument parsing.