feat: add MsgAddAuthorization to add or update and authorization and MsgRemoveAuthorization to remove a authorization

[kingpinXD]

Description

This pr adds the following messages, which can be used to update the authorization list

• MsgAddAuthorization : Add or update an authorization
• MsgRemoveAuthorization: Remove existing authorization

Closes: #2288

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 69.44%. Comparing base (c93d1c6) to head (e441631).

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #2305      +/-   ##
===========================================
+ Coverage    69.27%   69.44%   +0.16%     
===========================================
  Files          276      281       +5     
  Lines        16563    16654      +91     
===========================================
+ Hits         11474    11565      +91     
  Misses        4604     4604              
  Partials       485      485              

Files	Coverage Δ
x/authority/keeper/msg_server_add_authorization.go	100.00% <100.00%> (ø)
...uthority/keeper/msg_server_remove_authorization.go	100.00% <100.00%> (ø)
x/authority/types/authorizations.go	100.00% <100.00%> (ø)
x/authority/types/message_add_authorization.go	100.00% <100.00%> (ø)
x/authority/types/message_remove_authorization.go	100.00% <100.00%> (ø)
x/authority/types/policies.go	100.00% <100.00%> (ø)
x/authority/types/policy_type.go	100.00% <100.00%> (ø)

[lumtis]

Looks good, reporting some typos