Missing ICAO code: UCFM (alias of UAFM, which exists)

[dtonhofer]

This is https://en.wikipedia.org/wiki/Manas_International_Airport

ICAO: UCFM, formerly UAFM.

UAFM is in the dataset, but not UCFM.

As is the custom, "UCFM" can be found in "gps_code" instead.