feat: add Spring WebMvc support for /graphiql application console

[igdianov]

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[codecov]

Codecov Report

Merging #247 into master will increase coverage by 0.02%.
The diff coverage is 100.00%.

@@             Coverage Diff              @@
##             master     #247      +/-   ##
============================================
+ Coverage     70.83%   70.86%   +0.02%     
- Complexity      955      957       +2     
============================================
  Files            65       66       +1     
  Lines          4430     4434       +4     
  Branches        661      661              
============================================
+ Hits           3138     3142       +4     
  Misses         1013     1013              
  Partials        279      279              

Impacted Files	Coverage Δ	Complexity Δ
...query/graphiql/WebMvcViewControllerConfigurer.java	100.00% <100.00%> (ø)	2.00 <2.00> (?)

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