Add support for firmware config initial pins

[jgm3d]

Is your feature request related to a problem? Please describe

I using BTT relay as safty measure, for that I need to setup PE4 pin to true during boot to avoid the relay cut the power in the mean time klipper is booting.
If I modify firmware configuration file from the board folder (CONFIG_INITIAL_PINS="PE4"), when the update is checked, from moonraker, is set it as dirty.

Describe the solution you'd like

• Put an option to avoid automatic firmware compilation and flashing to allow set CONFIG_INITIAL_PINS before.
• Allow, in some way, to set initial pins from the board setup wizard and keep it for later firmware upgrades.

Describe alternatives you've considered

No response

Additional information

No response

[miklschmidt]

This might be possible in a future release, but currently it's unfortunately not practical to do.

[jgm3d]

ok, thank you

[miklschmidt]

I'm gonna reopen this because it's definitely something i want to add eventually. It'll be 3.0 probably. Maybe sooner.

[jgm3d]

Thank you Mikkel, I really appreciate it, looking forward for it.