Dmslogo

Changed
- Left and right margins now absolute rather than relative for `facet_plot`.
- Adjusted default width of plots created by `draw_logo`.

Added
- Parameters to set better margins for `facet_plot`.
- Enable customization of underline colors in `draw_line`.

Changed
- Better letter sizing in logo plots by adding manually adjusted fonts as package data, and changing how font scaling and spacing are done.

Added
- Added `share_ylim_across_rows` to `facet_plot` to allow rows to have different y-limits.

Added
- Enable `facet_plot` to facet rows that are missing an entry.

Initial release