Add multiple comparison function for sorting.
Summary
Added the ability to chain comparison functions together for improved sorting.
fn\fnCompareMulti
fn\CompareMulti lets you chain comparison functions together for sorting recorder based upon different fields.
Example
usort($records, fn\fnCompareMulti([
fn\fnCompareFieldRev('price'), // first by price descending
fn\fnCompareField('name'), // then by name ascending
])