2025/01/27: Ver. 0.0.1
Base operations: 
- set/get place, weather, DUT1 and polar move
- dynamic string and conversion of time and angle to human-readable string
- get julian date with all need components (including MJD) by timeval, UNIX time and full julian date; get local sidereal time
- convert RADEC <> AZ
- get ha/ra by ra/ha and LST
- get observed place for given location/weather/polar data of place or star (with pm etc)
- get catalog mean position of coordinates for given epoch and observed place