Implement all Tournament v4 and Tournament Stub v4 endpoints

[simivar]

Implement all Tournament v4 and Tournament Stub v4 endpoints: #19 & #18

[codecov-io]

Codecov Report

Merging #40 into main will decrease coverage by 0.12%.
The diff coverage is 95.81%.

@@             Coverage Diff              @@
##               main      #40      +/-   ##
============================================
- Coverage     97.36%   97.23%   -0.13%     
- Complexity      669      712      +43     
============================================
  Files            93       99       +6     
  Lines          2273     2463     +190     
============================================
+ Hits           2213     2395     +182     
- Misses           60       68       +8     

Impacted Files	Coverage Δ	Complexity Δ
src/Riot/API.php	0.00% <0.00%> (ø)	29.00 <4.00> (+4.00)
src/Riot/API/Version4/Tournament.php	100.00% <100.00%> (ø)	6.00 <6.00> (?)
src/Riot/API/Version4/TournamentStub.php	100.00% <100.00%> (ø)	4.00 <4.00> (?)
src/Riot/Collection/LobbyEventDTOCollection.php	100.00% <100.00%> (ø)	2.00 <2.00> (?)
src/Riot/Connection.php	100.00% <100.00%> (ø)	19.00 <5.00> (+4.00)
src/Riot/DTO/LobbyEventDTO.php	100.00% <100.00%> (ø)	5.00 <5.00> (?)
src/Riot/DTO/LobbyEventDTOWrapperDTO.php	100.00% <100.00%> (ø)	3.00 <3.00> (?)
src/Riot/DTO/TournamentCodeDTO.php	100.00% <100.00%> (ø)	15.00 <15.00> (?)
... and 4 more

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