ApiFormatterComponent for 2.x

[didoda]

This provides ApiFormatterComponent

Ref:

• ApiFormatterComponent #38 for master
• ApiFormatterComponent for 1.x #39 for 1.x
• ApiFormatterComponent for 2.x #40 for 2.x

[codecov]

Codecov Report

Merging #40 (80dd519) into 2.x (339c395) will increase coverage by 0.93%.
The diff coverage is 100.00%.

@@             Coverage Diff              @@
##                2.x      #40      +/-   ##
============================================
+ Coverage     85.64%   86.58%   +0.93%     
- Complexity      167      177      +10     
============================================
  Files            17       18       +1     
  Lines           432      462      +30     
============================================
+ Hits            370      400      +30     
  Misses           62       62              

Impacted Files	Coverage Δ	Complexity Δ
src/Controller/Component/ApiFormatterComponent.php	100.00% <100.00%> (ø)	10.00 <10.00> (?)

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