[P157] Add plugin for 14-segment displays (HT16K33)

[tonhuisman]

Features:

• [P157] Add plugin for 14-segment displays (HT16K33), (1..8 modules) 4..64 digits, (based on P073), also supports 7-segment HT16K33 displays.
• Feature set very similar to P073, with the same command set, scrolling display, and binary segment-control.
• Uses Noiasca HT16K33 library for 14 and 7 segment displays
• [P057] Update name to better distinguish from [P157]
• [P165] Update build feature flag

TODO:

• Documentation.
• Add font support for 7-segment displays, similar to P073, using the same font data.
• Testing.