[5.x] Add includes and doesnt_include conditions and includes modifier

[ryanmitchell]

This is a second go at this and is an alternative to / replaces #8357

This PR adds an includes modifier and tag condition, as well as a doesnt_include tag condition. The Modifier is intentionally a loose comparison, so if any of the values in needle are found it counts as a match. This is to mirror how whereJsonContains() on the eloquent side.

Potentially an includes_all modifier could be added for a strict comparison (or the naming of this could be changed to includes_any).

Closes statamic/ideas#910

[afonic]

Good job! This is very useful and will solve not being able to filter by any field that gets saved by an array (like multiple select, checkboxes etc).

[robdekort]

This is very useful, and seems to work like a charm. I ran into a Statamic limitation and @afonic pointed me to your PR Ryan. Thanks both.

[robdekort]

Jason do you reckon this will make the cut someday and I can patch it in? Otherwise I'll work on a query scope instead.

[jasonvarga]

do you reckon this will make the cut someday

More than likely, but not 100% sure.

[robdekort]

Gotcha. Thanks Jason.

[jacksleight]

Nice! This will close statamic/ideas#910