Support multiple actions in one request

**Is your feature request related to a problem? Please describe.**
The internal Sagemcom API supports passing multiple actions in one request, which could speed up the request.

**Describe the solution you'd like**
Support passing multiple actions, perhaps by chaining the normal requests with a special parameter.

**Additional context**
How to handle exceptions? It is possible to have an error (exception) for one action, where others will succeed without errors.

How to have typed responses? This is currently a major advantage of this client.

The issue names no files, tests, or entry points, so begin by locating the existing request and typed-response handling. Before implementation, define how multiple actions are represented, how partial exceptions are reported, and how typed responses remain supported; done requires an agreed design and corresponding coverage.

Written by the indexing model from the issue text.