Update 20261012 mccabe -- Moved data into /d2/www/dtcenter/dfiles/code/METplus/METviewer_Data so we can put input data for METdataio into METdataio_Data to be consistent with other input data naming conventions

On mohawk the sample_data-met_out_v9.1.tgz file was moved from:

/d2/www/dtcenter/dfiles/code/METplus/METviewer/sample_data-met_out_v9.1.tgz

to

/d2/www/dtcenter/dfiles/code/METplus/METdatadb/sample_data-met_out_v9.1.tgz

which then broke the instructions for this video:

https://metplus-training.readthedocs.io/en/latest/modules/METviewer/docker.html

To solve this problem, we created the directory /d2/www/dtcenter/dfiles/code/METplus/METviewer
and added a link using "ln -s /d2/www/dtcenter/dfiles/code/METplus/METdatadb/sample_data-met_out_v9.1.tgz"
on 20220204.  That link only exists for the METviewer Training Instructions (URL for video is above).

If/when the instructions in the video are modified/updated, we can remove the
link from the METviewer subdirectory and delete the METviewer subdirectory.