Add full support for public clients for auth code grant (PKCE)

[X-Coder264]

No description provided.

[codecov-io]

Codecov Report

Merging #167 into master will increase coverage by 0.7%.
The diff coverage is 100%.

@@             Coverage Diff             @@
##             master     #167     +/-   ##
===========================================
+ Coverage     91.07%   91.78%   +0.7%     
- Complexity      354      362      +8     
===========================================
  Files            56       56             
  Lines          1188     1205     +17     
===========================================
+ Hits           1082     1106     +24     
+ Misses          106       99      -7

Impacted Files	Coverage Δ	Complexity Δ
Model/Client.php	93.54% <100%> (+0.44%)	15 <5> (+3)	⬆️
DependencyInjection/TrikoderOAuth2Extension.php	91.59% <100%> (+0.07%)	27 <0> (+1)	⬆️
DependencyInjection/Configuration.php	100% <100%> (ø)	5 <0> (ø)	⬇️
League/Repository/ClientRepository.php	96.77% <100%> (+3.02%)	14 <0> (ø)	⬇️
Command/CreateClientCommand.php	100% <100%> (ø)	8 <0> (+4)	⬆️
League/Entity/Client.php	66.66% <100%> (ø)	3 <1> (ø)	⬇️
Event/AuthorizationRequestResolveEvent.php	66.66% <0%> (+14.28%)	21% <0%> (ø)	⬇️

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[spideyfusion]

@X-Coder264 Looking good! We can merge this in once @HypeMC has finished his review.