RFE: JTAGG cell that's compatible with the Lattice Diamond version

[tomverbeure]

The JTAGG cell of prjtrellis doesn't have TCK/TMS/TDI/TDO as inputs and output. It only has the internal signals (JTCK etc.)

When you compile code with this JTAGG cell with Diamond, you get errors because TCK etc aren't connected: it expects these signals to be there.

This is also a problem when you want to create a simulation model of the JTAGG cell (which I'm working on): JTCK is supposed to be a through-connection of TCK, but TCK isn't there, so you have to fall back to simulation tricks to make it work.

Is it possible to make the JTAGG cell in prjtrellis compatible with the Diamond one, and add those pins?