Scaffold a secondary apriltag detector using SIMD optimized umich detector

[Eeshwar-Krishnan]

Description

Adds a selectable apriltag pipeline with a hook for an alternate SIMD accelerated apriltag detector (to be upstreamed to wpilib). Currently the backend falls back to the wpilib backend, since the SIMD specific detector needs to be built on a platform specific basis.

Meta

Merge checklist:

• Pull Request title is short, imperative summary of proposed changes
• The description documents the what and why
• If this PR changes behavior or adds a feature, user documentation is updated
• If this PR touches photon-serde, all messages have been regenerated and hashes have not changed unexpectedly
• If this PR touches configuration, this is backwards compatible with settings back to v2025.3.2
• If this PR touches pipeline settings or anything related to data exchange, the frontend typing is updated
• If this PR addresses a bug, a regression test for it is added

[Eeshwar-Krishnan]

(i had made this for a class with permission from the PV devs and it was never meant to be merged. Closing now so I can reset my repo to focus on the actual PV changes I want to upstream)