Added MTG-1 FCI instrument files

data/instrument_data/MTG-I1.FCI.2022.12.13.auto.instrument

+FCI
+MTG-I1
+  -999.0
+2022 347
+   1
+Created by generate_geocat_calibration_table.pro at Fri Feb  3 17:23:59 2023 by mpav on popo.ssec.wisc.edu with RTTOV SRFs downloaded on Sat Jan 21 20:45:31 UTC 2023 from nwp-saf.eumetsat.int/downloads/rtcoef_rttov13/ir_srf/
+(I2,1X,F12.6,1X,F12.6,1X,F13.8,1X,F13.8)
+IC      S_wnum     c_wnum        a_planck      b_planck
+ 1    35.803259 22423.538242   -1.39060607    0.26463563
+ 2    48.034614 19691.691636    0.50309398    0.73156420
+ 3    65.922740 15725.487852    0.83713043    0.78871885
+ 4    72.441203 11645.896308    1.61882349    0.96745417
+ 5    74.992969 10953.101723    0.40671480    0.99917666
+ 6    68.034106  7253.855814    0.26387768    0.99971229
+ 7    63.690810  6204.679675    0.42370182    0.99943226
+ 8    38.026252  4434.247639    0.16587362    0.99987657
+ 9    15.458182  2643.333103    2.17291802    0.99631276
+10     6.045425  1602.115422    3.42765546    0.99401259
+11     4.374632  1348.556478    0.43598808    0.99916577
+12     3.182817  1143.509517    0.22280445    0.99952079
+13     2.624610  1035.290611    0.09565124    0.99978935
+14     2.219997   949.777522    0.37165519    0.99904221
+15     1.639437   812.880475    0.16370763    0.99952394
+16     1.411318   753.238268    0.17271635    0.99945662

data/instrument_data/MTG-I1.FCI.list

+file    start  start  start  end    end    end               file-
+index   year   month  day    year   month  day               name
+-------------------------------------------------------------------------------------
+1       2022    12     13     9999   99     99                MTG-I1.FCI.2022.12.13.auto.instrument