Two-line string generation from TLE structure
[str, desc] = CL_tle_format(tle)
This function creates a 2-line string from a TLE structure.
The "desc" field in the structure is returned in the desc argument.
The output string is generated even if the "status" value is not 0.
If a value does not fit with the format, the slot in the string is filled with "#" characters.
TLE structure (size N).
(string) Standard two-line element (2xN)
(string) Description or empty string (1xN)
CNES - DCT/SB/MS