feat(tools/when): support more timestamps with better merging logic r/8093

Adds a FieldSet type which defines which parts of a timestamp to merge into
another in a new `mergeTime` function.

With this two timestamps can be merged granularly, enabling more queries like
`Sep 03 18:00` to return useful results (e.g., in this case, in the current year
and location).

Change-Id: I8db161608c5f68c8f9c61de8c6fa46067eced39b
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11601
Autosubmit: tazjin <tazjin@tvl.su>
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI

0 files changed, 0 insertions, 0 deletions