feat: add support for the Streams API

[evertoncolling]

Description

Adds support for the Streams API in the Data Modeling module, enabling users to create, retrieve, list, and delete streams.

Checklist:

• Tests added/updated.
• Documentation updated. Documentation is generated from docstrings - these must be updated according to your change.
  If a new method has been added it should be referenced in cognite.rst in order to generate docs based on its docstring.
• The PR title follows the Conventional Commit spec.

[codecov]

Codecov Report

❌ Patch coverage is 98.24561% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 90.98%. Comparing base (f356839) to head (274b01b).
⚠️ Report is 6 commits behind head on master.

Files with missing lines	Patch %	Lines
cognite/client/_api/data_modeling/streams.py	96.77%	1 Missing ⚠️
...gnite/client/data_classes/data_modeling/streams.py	98.71%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff            @@
##           master    #2380    +/-   ##
========================================
  Coverage   90.97%   90.98%            
========================================
  Files         192      194     +2     
  Lines       26138    26256   +118     
========================================
+ Hits        23780    23889   +109     
- Misses       2358     2367     +9     

Files with missing lines	Coverage Δ
cognite/client/_api/data_modeling/__init__.py	100.00% <100.00%> (ø)
cognite/client/_api_client.py	91.55% <ø> (ø)
...nite/client/data_classes/data_modeling/__init__.py	100.00% <100.00%> (ø)
cognite/client/testing.py	100.00% <100.00%> (ø)
cognite/client/_api/data_modeling/streams.py	96.77% <96.77%> (ø)
...gnite/client/data_classes/data_modeling/streams.py	98.71% <98.71%> (ø)

... and 10 files with indirect coverage changes

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[haakonvt]

I kindly ask we do this post v8 unless there is a very sudden need!

[evertoncolling]

I kindly ask we do this post v8 unless there is a very sudden need!

No rush! But it would be nice to ship it in December or early January if possible 🙂

[haakonvt]

I kindly ask we do this post v8 unless there is a very sudden need!

No rush! But it would be nice to ship it in December or early January if possible 🙂

You heard it here first, I promise v8 first half of November (or I'll eat my shoe)

[haakonvt]

Btw, seen this? #2246

[evertoncolling]

Btw, seen this? #2246

Yes, this one is based on that one, but focusing only on streams (plus making sure we keep single item operations on top of streams and changing the stream templates from enum to a simple string).

The idea is to get this one in, as it's simpler, and then have a second PR focused only on records.