add components for surface snow data

[emilyhcliu]

This PR includes the following changes:

1. Add mapping and Python for surface snow data
2. Move test configuration from /spoc/dump/config to /spoc/ush/test
3. Remove an old test configuration file
4. Update README for test (/spoc/ush/test)
5. Change filename convention change from bufr2ioda to bufr (more general)
6. Fix Python coding norm errors (ctest is adding to obsForge - in progress obsForge PR #4

[PraveenKumar-NOAA]

Looks good!

[emilyhcliu]

@PraveenKumar-NOAA @nicholasesposito @rmclaren
I updated the scripts/yamls, and readme documentation based on your review comments:

• changed totalSnowDepth unit from mm to m following IODA data convention
• added unit m to stationEvelation
• the unit for stationIdentification is set to Index for now since there is no unit defined in IODA data convention for stationIdentification.
• added `bound to include:begin" for time window in the test configuration YAMLs
• updated README file for testing

I also updated the following:

• added observation receipt time (dataReceiptTime) to YAML for snow and satwind data
• updated test reference files (uploaded to EMCRZDM)

Please review them one more time and approve these updates if they look good to you.

There will be no more updates from me for this PR. I will merge the PR as soon as I get your approvals. Thanks!

[nicholasesposito]

The rest looks good to me!