Changes needed for updated RRFS_B diagnostics.

[Brian-Jamison]

------ Jun 7

Should have been deployed. A quick double check is needed to make sure they're populated on the website.

------ May 4

Slack message from Eric James:
Hi graphics team! We finally have new winter weather diagnostics ready for plotting in RRFS-B...just in time for the end of winter weather haha.
Run total and 1-h accumulated snow water equivalent are now called "TSNOWP" (instead of WEASD; we still have a WEASD variable but it indicates the instantaneous amount of snow water equivalent on the ground).
Run total and 1-h accumulated graupel (sleet) are now available as "FROZR".
And run total and 1-h accumulated freezing rain are "FRZR".
Note we still have ASNOW, which is the variable density run total snow accumulation.
Let me know if you have any questions or issues!