SPIKE: Add custom sorting function to table columns

[cjwinsor]

References: #1602 https://tanstack.com/table/latest/docs/guide/sorting

Define what the function needs to be that is passed to sortingFn such that the end user can define their own custom sorting functions. Ideally they would pass a function like (a, b) = > { // implementation }.

Document the shape of the expected function and if we need or want to simplify it.