## What type of PR is this? (check all applicable)
- [X] Feature
## Have you discussed this change with the InvokeAI team?
- [X] No, because: Non-controversial
## Have you updated all relevant documentation?
- [ ] Yes
- [X] N/A
## Description
This adds a list of T2I adapters to the “starter models” offered by the
TUI installer. None of the models is selected by default; this can be
done easily if requested. The models offered to the user are:
```
TencentARC/t2iadapter_canny_sd15v2
TencentARC/t2iadapter_sketch_sd15v2
TencentARC/t2iadapter_depth_sd15v2
TencentARC/t2iadapter_zoedepth_sd15v1
TencentARC/t2i-adapter-canny-sdxl-1.0
TencentARC/t2i-adapter-depth-zoe-sdxl-1.0
TencentARC/t2i-adapter-lineart-sdxl-1.0
TencentARC/t2i-adapter-sketch-sdxl-1.0
```
## Related Tickets & Documents
PR #4612
## QA Instructions, Screenshots, Recordings
The revised installer has a new IP-ADAPTERS tab that looks like this:
## Added/updated tests?
- [ ] Yes
- [X] No : It would be good to have a suite of model download tests, but
not set up yet.
- Update backend metadata for t2i adapter
- Fix typo in `T2IAdapterInvocation`: `ip_adapter_model` -> `t2i_adapter_model`
- Update linear graphs to use t2i adapter
- Add client metadata recall for t2i adapter
- Fix bug with controlnet metadata recall - processor should be set to 'none' when recalling a control adapter
Control adapters logic/state/ui is now generalized to hold controlnet, ip_adapter and t2i_adapter. In the future, other control adapter types can be added.
TODO:
- Limit IP adapter to 1
- Add T2I adapter to linear graphs
- Fix autoprocess
- T2I metadata saving & recall
- Improve on control adapters UI
## What type of PR is this? (check all applicable)
- [ ] Refactor
- [x] Feature
- [ ] Bug Fix
- [ ] Optimization
- [ ] Documentation Update
- [ ] Community Node Submission
## Have you discussed this change with the InvokeAI team?
- [x] Yes
- [ ] No, because:
## Have you updated all relevant documentation?
- [x] Yes
- [ ] No
## Description
This PR adds support for slow unit tests that depend on models. It
includes:
- Documentation explaining the handling of fast vs. slow unit tests.
- Utilities to assist with writing tests that depend on models.
- A sample test that loads and runs an IP-Adapter model. This is far
from complete test coverage of IP-Adapter - it's just intended as a
first example of how to write tests with models.
**Suggestion for reviewers**: Start with docs/contributing/TESTS.md
## QA Instructions, Screenshots, Recordings
I've tested it all, but it would make sense for others to try running
both the fast tests and the slow tests.
## Added/updated tests?
- [x] Yes
- [ ] No
