feat: add queries ShowAuthorization and ListAuthorizations

[kingpinXD]

Description

Closes: #2307

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Include instructions and any relevant details so others can reproduce.

• Tested CCTX in localnet
• Tested in development environment
• Go unit tests
• Go integration tests
• Tested via GitHub Actions

Checklist:

• I have added unit tests that prove my fix feature works

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 68.30%. Comparing base (5929b51) to head (a6b4c89).

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #2312      +/-   ##
===========================================
+ Coverage    68.26%   68.30%   +0.04%     
===========================================
  Files          298      299       +1     
  Lines        18880    18905      +25     
===========================================
+ Hits         12888    12913      +25     
  Misses        5355     5355              
  Partials       637      637              

Files	Coverage Δ
.../authority/keeper/grpc_query_authorization_list.go	100.00% <100.00%> (ø)

[lumtis]

LGTM
Minor comment