Feature/pinephone hwtest
This adds the postmarketos-boot-hwtest package, it works exactly the same as postmarketos-ui-hwtest would except that it doesn't get listed in the init step. To use it init pmbootstrap with the none
ui and then install postmarketos-boot-hwtest as an extra package.
The hwtest ui runs hwtest --export --verify on boot and outputs the result with a new colored output. It's mainly for verifying that the hardware works and for quickly testing a mainline kernel after updating/rebasing it.
This also adds hwtest.ini to the pinephone package.