Adopt swift-wallet and fluent-wallet

[fpseverino]

This PR implements the first two points of issue #13:

• Change package name to vapor-community/wallet and target names to VaporWallet, VaporWalletPasses and VaporWalletOrders
• Use pass and order building offered by swift-wallet
• Use models and DTOs offered by fluent-wallet

Other changes:

• Update to VaporTesting
• Make PersonalizationInfo migration in PassesService optional
• Improve auth middleware

Closes #13. See the issue for more info and reasons behind the changes.

[codecov]

Codecov Report

Attention: Patch coverage is 97.77778% with 2 lines in your changes missing coverage. Please review.

Project coverage is 92.47%. Comparing base (349b450) to head (b4a7967).
Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
...ources/VaporWalletOrders/OrdersServiceCustom.swift	96.55%	1 Missing ⚠️
...ources/VaporWalletPasses/PassesServiceCustom.swift	97.72%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #19      +/-   ##
==========================================
- Coverage   96.40%   92.47%   -3.93%     
==========================================
  Files          34       10      -24     
  Lines        1167      718     -449     
==========================================
- Hits         1125      664     -461     
- Misses         42       54      +12     

Files with missing lines	Coverage Δ
Sources/VaporWallet/Testing/SecretMiddleware.swift	100.00% <ø> (ø)
...rces/VaporWallet/Testing/isLoggingConfigured.swift	100.00% <ø> (ø)
...WalletOrders/Middleware/AppleOrderMiddleware.swift	100.00% <100.00%> (ø)
...iddleware/OrdersService+AsyncModelMiddleware.swift	50.00% <ø> (ø)
Sources/VaporWalletOrders/OrdersService.swift	100.00% <100.00%> (ø)
...rWalletPasses/Middleware/ApplePassMiddleware.swift	100.00% <100.00%> (ø)
...iddleware/PassesService+AsyncModelMiddleware.swift	50.00% <ø> (ø)
Sources/VaporWalletPasses/PassesService.swift	100.00% <100.00%> (ø)
...ources/VaporWalletOrders/OrdersServiceCustom.swift	95.52% <96.55%> (ø)
...ources/VaporWalletPasses/PassesServiceCustom.swift	95.58% <97.72%> (ø)