Adds option to emit jsonapi version in response documents

[bart-degreed]

Fixes #980.

[codecov]

Codecov Report

Merging #992 (9e74991) into master (d033166) will increase coverage by 0.02%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #992      +/-   ##
==========================================
+ Coverage   91.26%   91.28%   +0.02%     
==========================================
  Files         281      282       +1     
  Lines        7429     7448      +19     
==========================================
+ Hits         6780     6799      +19     
  Misses        649      649              

Impacted Files	Coverage Δ
...JsonApiDotNetCore/Configuration/IJsonApiOptions.cs	100.00% <ø> (ø)
.../JsonApiDotNetCore/Configuration/JsonApiOptions.cs	100.00% <100.00%> (ø)
...erialization/AtomicOperationsResponseSerializer.cs	98.03% <100.00%> (+0.42%)	⬆️
.../Serialization/Objects/AtomicOperationsDocument.cs	100.00% <100.00%> (ø)
...sonApiDotNetCore/Serialization/Objects/Document.cs	100.00% <100.00%> (ø)
...iDotNetCore/Serialization/Objects/JsonApiObject.cs	100.00% <100.00%> (ø)
...nApiDotNetCore/Serialization/ResponseSerializer.cs	100.00% <100.00%> (ø)

---

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 d033166...9e74991. Read the comment docs.