Fluent api on ParametersTrait

[ilvalerione]

I added the ability to chain method when using removeParameter and addParameter in ParametersTrait returning $this.

Fluent api is yet available in setParameters method, but if you need to apply parameters by multiple call on addParameter you can't get advantage by methods chain.

[codecov-io]

Codecov Report

❗ No coverage uploaded for pull request base (7.x@b86153c). Click here to learn what that means.
The diff coverage is 100%.

@@          Coverage Diff           @@
##             7.x     #304   +/-   ##
======================================
  Coverage       ?   78.46%           
  Complexity     ?      730           
======================================
  Files          ?      122           
  Lines          ?     1885           
  Branches       ?        0           
======================================
  Hits           ?     1479           
  Misses         ?      406           
  Partials       ?        0

Impacted Files	Coverage Δ	Complexity Δ
src/ParametersTrait.php	100% <100%> (ø)	8 <0> (?)

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