!feat: add authentication support

[sbckr]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 83.54430% with 26 lines in your changes missing coverage. Please review.

Project coverage is 81.35%. Comparing base (4c5b931) to head (8b8d935).

Additional details and impacted files

@@             Coverage Diff              @@
##             master      #42      +/-   ##
============================================
- Coverage     83.32%   81.35%   -1.97%     
+ Complexity      388      387       -1     
============================================
  Files            69       69              
  Lines          1463     1502      +39     
  Branches         75       80       +5     
============================================
+ Hits           1219     1222       +3     
- Misses          193      223      +30     
- Partials         51       57       +6     

Files	Coverage Δ
...amphora/command/AmphoraClientCliCommandRunner.java	87.23% <100.00%> (ø)
...t/castor/command/CastorClientCliCommandRunner.java	80.00% <100.00%> (-0.56%)	⬇️
...meral/command/EphemeralClientCliCommandRunner.java	84.00% <100.00%> (ø)
.../main/java/io/carbynestack/cli/login/VcpToken.java	100.00% <100.00%> (ø)
...n/java/io/carbynestack/cli/login/LoginCommand.java	89.74% <91.17%> (+4.44%)	⬆️
...rbynestack/cli/configuration/VcpConfiguration.java	91.89% <92.72%> (-2.85%)	⬇️
...in/OAuth2AuthenticationCodeCallbackHttpServer.java	80.00% <81.25%> (-6.28%)	⬇️
.../java/io/carbynestack/cli/login/VcpTokenStore.java	67.30% <51.85%> (-27.70%)	⬇️

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[sbckr]

@jaredweinfurtner @benjaminhettwer
Code looks good but can one of you please update the License Headers of all files updated (year: 202x-2024)