rough implementation of a capture filter

[imskyyc]

fix typechecking issues (in possibly the worst way i could think of)

this is untested! i'm still working on this :)

[imskyyc]

opening this up because it is working now!

[devSparkle]

Hi!

Thank you for this awsome contribution! I'm still reviewing, I'd just like to leave a few notes.

1. I've gone ahead and reverted style changes — it was making it difficult to distinguish between styling and code changes, which was hampering review. If you'd like to propose style changes, I'm more than happy to consider them in a seperate commit.
2. Thanks for the added support of the SDK as a Git Submodule! I'll be testing this seperately, and if it checks out cherry-picking the commit onto main.

[imskyyc]

Hi!

Thank you for this awsome contribution! I'm still reviewing, I'd just like to leave a few notes.

1. I've gone ahead and reverted style changes — it was making it difficult to distinguish between styling and code changes, which was hampering review. If you'd like to propose style changes, I'm more than happy to consider them in a seperate commit.
2. Thanks for the added support of the SDK as a Git Submodule! I'll be testing this seperately, and if it checks out cherry-picking the commit onto main.

Apologies for the styling changes, my IDE applied them automatically.