fix: better error handling / messsage when testing email notification when stmp is not configured, fixes #8093

* refactor util encryption library so it doesn't have to import log

* add util.SplitString to handle space and/or comma-separated config lines

* go fmt

fix: make organisation filter case insensitive

Downloads a large open dataset from NYC Open Data.
Then converts date columns into the mysql format.

If the selected table column is string then show that in the singlestat

Adds support for value mapping for table data in the single stat panel.

If data is of type Table, then will return the first row of data. The
user can select which column should be shown in the SingleStat.

Fixes the homepath and config command line args. This allows the
command to be used even when the homepath is different from the
default.

Fixes #7730