Add auth-http-service example

[opencroco]

add auth-http-service token authorization

• Add an example class MyAuthHandler.java implements Authorizer Interface.
• Add an example class Auth1aHandler.java implements Authorizer Interface.
• Add an example class Auth2Handler.java implements Authorizer Interface.

[CLAassistant]

All committers have signed the CLA.

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 0% with 60 lines in your changes missing coverage. Please review.

Project coverage is 74.05%. Comparing base (9ae0968) to head (d98f184). Report is 1973 commits behind head on main.

Files with missing lines	Patch %	Lines
...rc/main/java/example/armeria/server/auth/Main.java	0.00%	35 Missing :warning:
...ava/example/armeria/server/auth/Auth1aHandler.java	0.00%	16 Missing :warning:
...java/example/armeria/server/auth/Auth2Handler.java	0.00%	6 Missing :warning:
...ava/example/armeria/server/auth/MyAuthHandler.java	0.00%	3 Missing :warning:

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #3195      +/-   ##
============================================
- Coverage     74.13%   74.05%   -0.08%     
+ Complexity    12877    12876       -1     
============================================
  Files          1119     1123       +4     
  Lines         48741    48801      +60     
  Branches       6229     6230       +1     
============================================
+ Hits          36132    36139       +7     
- Misses         9433     9477      +44     
- Partials       3176     3185       +9     

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[trustin]

Thank you very much for your first contribution! I believe this will be useful indeed for anyone who wants to implement authentication with AuthService. But first of all, would you mind updating README.md so it explains the example a little bit better?

[opencroco]

Thank you very much for your first contribution! I believe this will be useful indeed for anyone who wants to implement authentication with AuthService. But first of all, would you mind updating README.md so it explains the example a little bit better?

Of course,thanks for your reply and I will try to do better . I am pian to add more explaintion to "README.md" and make it look more detailed if get some advice.