Implement the device authorization endpoint

[nsklikas]

Complementary PR to canonical/fosite#2

The changes in this PR are based on the work done in ory#3252 (a lot of the work is taken unchanged).

This PR is intended to implement the logic described in paragraphs RFC8628 - Section 3.1 and RFC8628 - Section 3.1.

Future work:

• Implement the code verify/reject endpoints (changes to the flow will be needed for this
• Update the token endpoint
• Implement rate limiting strategy
• Update e2e tests

[alesstimec]

looks like a bunch of generated sql migrations.. i'm sure it's ok.. just.. godocs :)

[codecov]

Codecov Report

Attention: Patch coverage is 19.80198% with 81 lines in your changes are missing coverage. Please review.

❗ No coverage uploaded for pull request base (canonical@3e20430). Click here to learn what that means.

Files	Patch %	Lines
persistence/sql/persister_oauth2.go	0.00%	61 Missing ⚠️
oauth2/handler.go	6.66%	14 Missing ⚠️
fositex/config.go	33.33%	4 Missing ⚠️
driver/registry_base.go	71.42%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             canonical       #1   +/-   ##
============================================
  Coverage             ?   75.50%           
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  Files                ?      134           
  Lines                ?    10232           
  Branches             ?        0           
============================================
  Hits                 ?     7726           
  Misses               ?     1988           
  Partials             ?      518           

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