We can't get all the way there because we can't create pads outside
of modules and the Gerbers don't store any grouping/footprint info.
This change moves us from outputing a via for every flashed item
(some of which don't even have holes) to synthesizing pads from
flashed items using a via (when they have holes) and a copper polygon.
This is much better for SMD pads, perhaps better for regular pads,
and no worse for vias.
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.