Save/restore default netclass.
Read layers back in with correct syntax ('.' between keyword and layer name).
Write layers to project file.
Read/write layer enablement bits.
Don't set solder paste margin min to 0 (most of them are negative).
Fixes: lp:1811990
* https://bugs.launchpad.net/kicad/+bug/1811990
Small icons for dialog browse, refresh, and row operations.
Icons in B&W so they don't over-emphasize with respect to other
controls in the dialog.
Layout cleanup for consistency. Removal of the blank space to
left of the fields list in the Global Fields Editor, and addition
of column-sizing-to-list-width.
More even spacing for buttons in html report panel.
Honor platform conventions for action button order and layout.
Move netlist importer to update-pcb-from-schematic algorithm
(display messages and then update instead of "dry run" checkbox)
(cherry picked from commit b21e19d)
Improve dialog layout and fix UI policy issues with all of the dialog
boxes in the Gerbview and Pcbnew code paths.
Updated the use of component to footprint where appropriate.
File "rules" has instructional text as comments near top.
2) Convert all text files in repo to LF line ending form.
Any checkout done with "rules" in play will convert the working
tree to native line ending, while keeping repo as LF line ending.
* Added a dialog to select options: one or 2 files, units (mm or inch), and force INSERT option.
* code cleaning
* Modify corresponding icon in menu to show a footprint, not a schematic component.