Relationship result sorting

[emptynick]

This allows relationship results to be sorted by defining the following in the options:

"sort": {
    "field": "my_field",
    "direction": "asc"
}

Fixes #3617

[codecov]

Codecov Report

Merging #4858 into 1.4 will decrease coverage by 0.06%.
The diff coverage is 0.00%.

@@             Coverage Diff              @@
##                1.4    #4858      +/-   ##
============================================
- Coverage     63.00%   62.93%   -0.07%     
- Complexity     1370     1373       +3     
============================================
  Files           194      194              
  Lines          3992     3996       +4     
============================================
  Hits           2515     2515              
- Misses         1477     1481       +4     

Impacted Files	Coverage Δ	Complexity Δ
src/Http/Controllers/VoyagerBaseController.php	57.21% <0.00%> (-0.58%)	143.00 <0.00> (+3.00)	⬇️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 7dc47eb...db21bbf. Read the comment docs.

[MrCrayon]

Ordering works fine

[MrCrayon]

If setting desc in the example this can be changed as:

This will sort the results descending by the field `my_field`. Default value for direction is `asc`.

[MrCrayon]

You can add Closes #3617

[emptynick]

Done

[MrCrayon]

👍
Not sure if we need to specify that HasMany relationships won't be ordered.