added save and deploy for custom v8 instance seg

[josephofiowa]

Description

Please include a summary of the change and which issue is fixed or implemented. Please also include relevant motivation and context (e.g. links, docs, tickets etc.).

List any dependencies that are required for this change.

Type of change

Please delete options that are not relevant.

• [ ] Bug fix (non-breaking change which fixes an issue)
• [ X ] New feature (non-breaking change which adds functionality)
• [ ] This change requires a documentation update

How has this change been tested, please provide a testcase or example of how you tested the change?

I ran a custom training of YOLOv8 instance seg and validated that the upload path is correct.

Any specific deployment considerations

Mostly here! https://docs.roboflow.com/deploy/hosted-api/instance-segmentation

Docs

• [ ] Docs updated? What were the changes:

No docs changes.

[josephofiowa]

Ideally, this change should be complemented with also showing inference of the custom model in the next cell.

Loading that model would be:

model = project.version(dataset.version).model

[capjamesg]

@josephofiowa Thank you for the contribution! Can you replace train2/ with train/ in the upload path in the notebook? train2/ will only be created if a user has trained a second version of a model.

[josephofiowa]

Good catch! Forgot I had trained a second model when testing this. Updated.