[alpha] no seam edition

seems like the wizard has a problem in this version

You have to remove creality.ini and basic.ini from resources/profiles because they have duplicate lines.

Merged against the 2.2.0-alpha0 of PrusaSlicer
updates to extruders, wizard, 3DconnectionDevice, and other things.

new & changes

• no seam / vase mode setting when you print the external perimeter first.
• "only one periemter on top" now use the "anchor solid infill" setting and is correctly grown. Avoid problem with too small surfaces.
• add a setting to allow external perimeter to overlap (and so over-extrude) to avoid the use of thin walls when we don't care.
• add continuous integration in github action, so you can grab your linux & macos build from here (built on latest version of ubuntu & macos).
• restore the adaptative quality option (if you didn't activate the manual one, also exclusive vs the manual array one). It's a request but imo, the result are not good enough. Prusa seems to work on a better one, so stay tune. It should be featured in their next beta.

bugfixes

• infill spacing more sane
• more sane default profiles for some options
• french translation
• now changing the extruder count doesn't crash (#124). It's a mistake from my side, as i didn't choose the right commit when i merged to prusa 2.1 last time.

I wanted to do a stable release, but to correct a bug I had to merge with their branch. Silly me, i forgot to choose the stable branch last time. Well, lesson learned.