Add filename to YAML for NASA NRT VIIRS files with creation date/time.

[simonrp84]

The viirs_l1b format currently doesn't support files from the NASA / earthdata NRT data feed as these files contain the creation date in the filename.
This PR adds support for the NRT files by updating the YAML appropriately.

[djhoese]

Another filenaming scheme from the same vendor? Ok.

[simonrp84]

I have no idea if the existing NRT file format in the YAML is still applicable (the one without the creation date) but all the VIIRS L1b NRT files I've seen recently do contain the date. Will keep an eye on it, maybe we can delete the old one in the future.

[codecov]

Codecov Report

Merging #2065 (60bc02e) into main (e9caa3d) will decrease coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #2065      +/-   ##
==========================================
- Coverage   93.80%   93.78%   -0.02%     
==========================================
  Files         282      282              
  Lines       42204    42250      +46     
==========================================
+ Hits        39590    39626      +36     
- Misses       2614     2624      +10     

Flag	Coverage Δ
behaviourtests	4.74% <ø> (+<0.01%)	⬆️
unittests	94.35% <ø> (+<0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
satpy/utils.py	26.71% <0.00%> (-0.20%)	⬇️
satpy/tests/test_utils.py	100.00% <0.00%> (ø)
satpy/readers/hrpt.py	98.64% <0.00%> (+0.02%)	⬆️
satpy/readers/aapp_l1b.py	89.73% <0.00%> (+0.49%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update e9caa3d...60bc02e. Read the comment docs.

[coveralls]

Coverage remained the same at 94.291% when pulling 60bc02e on simonrp84:viirs_nrt into f34d563 on pytroll:main.