Deno 2 upgrades and project reorganization.

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 63.15789% with 7 lines in your changes missing coverage. Please review.

Project coverage is 89.54%. Comparing base (13c234f) to head (a77945a).

Files with missing lines	Patch %	Lines
bids-validator/src/version.ts	75.00%	3 Missing :warning:
bids-validator/src/schema/associations.ts	0.00%	2 Missing :warning:
bids-validator/src/schema/context.ts	0.00%	2 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #2171 +/- ## ========================================== + Coverage 85.72% 89.54% +3.81% ========================================== Files 91 42 -49 Lines 3784 3271 -513 Branches 1221 449 -772 ========================================== - Hits 3244 2929 -315 + Misses 454 333 -121 + Partials 86 9 -77 ```

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[effigies]

This will be done on the new repo.