Log message:
tex-context-pocketdiary{,-doc}: add version 2023

PocketDiary is a calendar module, enabling to prepare various
calendars from day- to week, month- and year-calendars based on
the ideas contained in PocketMods, having 8 pages arranged on a
A4 single-sided printed sheet of paper. The module comes with
different templates for notes etc. The module provides sun and
moon data calculations