<!-- Raise an issue to propose your change
(https://github.com/cvat-ai/cvat/issues).
It helps to avoid duplication of efforts from multiple independent
contributors.
Discuss your ideas with maintainers to be sure that changes will be
approved and merged.
Read the [Contribution guide](https://docs.cvat.ai/docs/contributing/).
-->
<!-- Provide a general summary of your changes in the Title above -->
### Motivation and context
This PR adds file-based profile creation:
- `cvat-cli profile create --file <path>`
- Supports plain-text PAT files
- Supports JSON envelopes with `token`, optional `server`, and optional
`name`
- Explicit `--name` and `--server-host` override envelope values
- A complete JSON envelope can create a profile without extra CLI
arguments
It also includes:
- Tests for plain-file import, JSON import, and precedence rules
- CLI/SDK/profile documentation updates
- A changelog entry for `--file`
### How has this been tested?
<!-- Please describe in detail how you tested your changes.
Include details of your testing environment, and the tests you ran to
see how your change affects other areas of the code, etc. -->
### Checklist
<!-- Go over all the following points, and put an `x` in all the boxes
that apply.
If an item isn't applicable for some reason, then ~~explicitly
strikethrough~~ the whole
line. If you don't do that, GitHub will show incorrect progress for the
pull request.
If you're unsure about any of these, don't hesitate to ask. We're here
to help! -->
- [x] I submit my changes into the `develop` branch
- [x] I have created a changelog fragment <!-- see top comment in
CHANGELOG.md -->
- [x] I have updated the documentation accordingly
- [x] I have added tests to cover my changes
- [x] I have linked related issues (see [GitHub docs](
https://help.github.com/en/github/managing-your-work-on-github/linking-a-pull-request-to-an-issue#linking-a-pull-request-to-an-issue-using-a-keyword))
### License
- [x] I submit _my code changes_ under the same [MIT License](
https://github.com/cvat-ai/cvat/blob/develop/LICENSE) that covers the
project.
Feel free to contact the maintainers if that's a concern.
---------
Co-authored-by: Maxim Zhiltsov <maxim@cvat.ai>
Andrei Strongin
c18932245f