Implement application command permissions v2

[BobDotCom]

Implements the new permissions system.
Original PR: #1129

[TurnrDev]

Just to be clear, what will this PR bring? What are the new changes to the permissions system?

[Dorukyum]

This allows bot devs & server managers to choose permission requirements (such as "manage messages") for commands

[codecov]

Codecov Report

Merging #1183 (dfb9e2b) into master (217da10) will increase coverage by 0.09%.
The diff coverage is 16.66%.

@@            Coverage Diff             @@
##           master    #1183      +/-   ##
==========================================
+ Coverage   33.42%   33.52%   +0.09%     
==========================================
  Files          93       93              
  Lines       17615    17558      -57     
==========================================
- Hits         5888     5886       -2     
+ Misses      11727    11672      -55     

Flag	Coverage Δ
pytest	33.52% <16.66%> (+0.09%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
discord/audit_logs.py	28.57% <ø> (ø)
discord/bot.py	18.87% <ø> (+1.37%)	⬆️
discord/commands/core.py	17.52% <0.00%> (-0.23%)	⬇️
discord/commands/permissions.py	28.57% <21.05%> (+10.38%)	⬆️
discord/enums.py	78.19% <33.33%> (-0.27%)	⬇️
discord/http.py	23.41% <40.00%> (+0.03%)	⬆️
discord/state.py	14.56% <50.00%> (+0.06%)	⬆️
discord/types/interactions.py	99.28% <100.00%> (ø)

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[plun1331]

Pretty much done except for gateway events

[Lulalaby]

@krittick wanna resolve mr conflicts?

[krittick]

@krittick wanna resolve mr conflicts?

Working on it now.