Support Date - Date kernel

[alamb]

Is your feature request related to a problem or challenge? Please describe what you are trying to do.
While implementing date/time arithmetic in DataFusion (apache/datafusion#6578) @jackwener found lack of Date - Date support in arithmetic kernels

Describe the solution you'd like
I would like kernels that can subtract

1. Date32Array - Date32Array and produce an IntervalYearMonthArray
2. Date64Array - Date64Array and produce IntervalMonthDayNanoArray

Describe alternatives you've considered

Additional context

[tustvold]

This likely overlaps with #3999

[sum12]

was planning to give this a try

Date32Array - Date32Array and produce an IntervalYearMonthArray

iiuc IntervalYearMonthArray cannot represent interval in of 1 day, for example. How about IntervalDayTimeType with millis set to 0.

[tustvold]

Thank you for expressing interest but I intend to implement this after #4465 which replaces the current arithmetic kernels. It will also return Duration to be consistent with the logic for timestamps, and avoid the issues inherent with intervals