add project_id to remaining device APIs

[gasmith]

This is one of several changes to relax the device naming constraint to be scoped to a project, instead of an org. This change updates the python client to expose a project_id parameter for various device endpoints.

[linear]

DC-222 Relax uniqueness constraint for device names to project scope

[mguida22]

Looks good once the API changes land and the doc comments are updated

[gasmith]

Thanks for the doc string adjustments; should've caught that myself.

[gasmith]

Looks good once the API changes land and the doc comments are updated

@mguida22: We should be safe to merge this before the API changes land, right? The API server ignores superfluous query parameters.

[mguida22]

Looks good once the API changes land and the doc comments are updated

@mguida22: We should be safe to merge this before the API changes land, right? The API server ignores superfluous query parameters.

Oh yup, you're right. I was thinking that it would be misleading to accept projectId early before the API uses it, but that's not a problem because the device name constraint is not relaxed yet.