Rail Button icons have been updated to better match the theme
with the rest of the icons. Tube Fin icons have been updated
with a larger tube for the fin (rather than the launch lug icon)
in order to disambiguate the two options.
Signed-off-by: Billy Olsen <billy.olsen@gmail.com>
RailButtons can be loaded, and edited, but not really displayed.
- data entry has defined file parameters, but needs some debugging.
- added icons for component creation. The button just needs to be uncommented
- display works, but only for rotation = 0;
- requires a new type of shape drawing. Not inherently hard, just tedious.
