Add support for name in limit definitions

[alexsnaps]

This add support for the optional name field in a Limit definition in limitador.
You can deploy this locally and apply config/samples/limitador_v1alpha1_limitador.yaml to your cluster, then inspect the resulting ConfigMap which should now include that name field with the value toy_get_route.

This has no value per se to the system as a whole. But paired with the next PR #113 , it will give better metrics to users. The idea is to have the kuadrant operator populate this with the RLP's name.

[codecov-commenter]

Codecov Report

Merging #112 (b7cc27a) into main (c4945bb) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #112   +/-   ##
=======================================
  Coverage   68.80%   68.80%           
=======================================
  Files          14       14           
  Lines         984      984           
=======================================
  Hits          677      677           
  Misses        267      267           
  Partials       40       40           

Flag	Coverage Δ
integration	66.06% <ø> (ø)
unit	70.19% <ø> (ø)

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Components	Coverage Δ
api/v1alpha1 (u)	100.00% <ø> (ø)
pkg/helpers (u)	∅ <ø> (∅)
pkg/log (u)	31.81% <ø> (ø)
pkg/reconcilers (u)	44.19% <ø> (ø)
pkg/limitador (u)	88.46% <ø> (ø)
controllers (i)	66.06% <ø> (ø)

Files	Coverage Δ
api/v1alpha1/limitador_types.go	100.00% <ø> (ø)