This commit introduces a prototype implementation of the
[Segment Anything v2](https://github.com/facebookresearch/segment-anything-2)
(SAM2) pipeline within the AI worker. The prototype demonstrates the basic
functionality needed to perform segmentation on an image. Note that video
segmentation is not yet implemented. Additionally, the dependencies were
updated quickly, which may temporarily break other pipelines.

This commit allows nested arrays to be supplied as JSON strings for SAM2
input. It also implements robust error handling to return a 400 error with
a descriptive message when incorrect parameters are provided.

This commit ensures that we return the masks, iou_predictions and
low_res_masks in json format.

…thing_2

This commit replaces the JSON.dump method with a simple str method since
it is highly unlikely that the string contains invalid data.

Co-authored-by: Peter Schroedl <peter_schroedl@me.com>

This commit moves the SAM2 docker file inside the docker container.

This commit cleansup the codebase and adds FastAPI parameter and
pipeline descriptions.

This commit improves the sam2 route function name so that it is more
pythonic and shows up nicer in the OpenAPI spec pipeline summary.

This commit updates the golang bindings so that the runner changes are
reflected.

This commit adds the media type content MIME type to the segment
anything 2 pipeline.

This commit removes the debug patch which was accidentally added to the
code.

This commit adds the SAM2 model download command so that orchestrators
can pre-download the model.

This commit ensures that the parameters are in the same order as the
pipeline parameters.

This commit fixes the example scripts.