IBM Plex Mono and IBM Plex Sans JP fonts for ashiato timeboard.

Installed fonts:
  IBMPlexMono-Regular.ttf   (weight 400)
  IBMPlexMono-Thin.ttf      (weight 200, for clock display)
  IBMPlexSansJP-Regular.ttf (weight 400, for labels)

WWW: https://github.com/IBM/plex
