Add search remove tags swati

[swati-sharma]

addTagsUsingCSV.py reads a comma separated csv file (projects_tags.csv) with project and tag as headers and adds the tag mentioned against a project.
API used: https://semgrep.dev/api/v1/deployments/{deployment_slug}/projects/{project_name}/tags
method: PUT

searchForATag.py tags tag as an input parameter and lists all the projects that contains that tag (pagination applied)
API used: https://semgrep.dev/api/v1/deployments/{deployment_slug}/projects

removeTags.py reads a comma separated csv file (remove_tags) with project and tag as headers and remove the tag listed against a project
API used: https://semgrep.dev/api/v1/deployments/{deployment_slug}/projects/{project_name}/tags
method: DELETE

[armchairlinguist]

I'm not comfortable with adding scripts that are essentially looking to hardcode the token - that's a practice we should avoid, and there are good examples in several places of other ways to approach it.

Can you also add a README to the folder with a small guide on using the functions?

[armchairlinguist]

Can you set this up to get the value from the env var or settings YAML? There are related routines in quite a few of the existing utilities for this which you can base it on. Same for all these files.

[armchairlinguist]

I think this can be a constant here like it is in the other files, yeah? No need for a function.

[armchairlinguist]

Probably want to provide a way to get the deployment slug automatically too, either from the CLI or from the endpoint using the token. Same again for all the files.

[armchairlinguist]

Ideally we'd have this come in as a CLI option too, but I wouldn't block on that.