feat: implement GNAP support

[aholovko]

Closes #287

Signed-off-by: Andrii Holovko [email protected]

[codecov]

Codecov Report

Merging #309 (8542816) into main (d46e46e) will decrease coverage by 0.28%.
The diff coverage is 89.24%.

@@            Coverage Diff             @@
##             main     #309      +/-   ##
==========================================
- Coverage   86.81%   86.52%   -0.29%     
==========================================
  Files          23       26       +3     
  Lines        1964     2071     +107     
==========================================
+ Hits         1705     1792      +87     
- Misses        161      174      +13     
- Partials       98      105       +7     

Impacted Files	Coverage Δ
pkg/controller/rest/handler.go	57.14% <50.00%> (-9.53%)	⬇️
cmd/kms-server/startcmd/start.go	76.68% <81.25%> (-2.34%)	⬇️
cmd/kms-server/startcmd/params.go	92.40% <88.88%> (-1.06%)	⬇️
pkg/controller/mw/authmw/zcapmw/zcap_middleware.go	91.42% <89.47%> (ø)
pkg/controller/mw/authmw/gnapmw/gnap_middleware.go	100.00% <100.00%> (ø)
...g/controller/mw/authmw/oauthmw/oauth_middleware.go	100.00% <100.00%> (ø)
pkg/controller/mw/authmw/wrap_auth_middleware.go	100.00% <100.00%> (ø)
pkg/controller/rest/operation.go	90.99% <100.00%> (ø)

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