Glasgow Embedded / Glasgow - History

Abstract away multiplexing/demultiplexing of pin and FIFO access.

Applets shouldn't need to care which specific port they run on,
unless they have a good reason to.

target: make _SyncPort have a TSTriple .t, to make it usable via Pads.

gateware.pads: accept and ignore None passed as an element.

This forces downstream code to use `hasattr`, which means it will
still work correctly if no element is passed at all. I.e.
the following works the same:

pads = Pads(rx=sig)
pads = Pads(rx=sig, tx=None)

applet: check if applet is already registered when subclassing.

It's a frequent copy-paste error.

cli: move code that adds a TRACE log level to main package.

Or you cannot `import glasgow.device` and have things work.

device.GlasgowPort: explicitly convert data to bytes in write.

The same is not done for write_str because of the default
implementation of __str__, which has too much of a footgun potential.