Cognite-sdk

Fixed
- Add the missing page_count field for diagram detect items.

Added
- Partial support for the instance resource in the Data Modeling API with the implementation
`client.data_modeling.instances`, the endpoints `list`, `delete`, `retrieve`, and `apply`

Fixed
- Requests being retried around a token refresh cycle, no longer risk getting stuck with an outdated token.

Added
- `CredentialProviders` subclassing `_OAuthCredentialProviderWithTokenRefresh`, now accepts a new parameter, `token_expiry_leeway_seconds`, controlling how early a token refresh request should be initiated (before it expires).

Changed
- `CredentialProviders` subclassing `_OAuthCredentialProviderWithTokenRefresh` now uses a safer default of 15 seconds (up from 3 sec) to control how early a token refresh request should be initiated (before it expires).

Fixed
- Signature of `client.data_modeling.views.retrieve` and `client.data_modeling.data_models.retrieve` to always return a list.

Added
- Support for the container resource in the Data Modeling API with the implementation `client.data_modeling.containers`.
- Support for the view resource in the Data Modeling API with the implementation `client.data_modeling.views`.
- Support for the data models resource in the Data Modeling API with the implementation `client.data_modeling.data_models`.

Removed
- Removed `retrieve_multiple` from the `SpacesAPI` to have a consistent API with the `views`, `containers`, and `data_models`.

Fixed
- Creating function schedules with current user credentials now works (used to fail at runtime with "Could not fetch a valid token (...)" because a session was never created.)