Sparse matrix solvers from SciPy

[jwhhh]

CoFI Pull Request Template

Description

This pull request links CoFI to all the sparse matrix solvers provided by SciPy.

Type of Change

Please indicate the type of change this pull request represents:

• New inference tool
• CoFI core / utils
• Documentation
• Others (please specify here)

Checklist for new inference tool

• Run the helper script tools/new_inference_tool.py to generate a new tool file
• Implement __init__ and __call__ methods
• Define class variables required_in_problems, optional_in_problem, required_in_options, and optional_in_options for input validation
• Define class variables short_description and documentation_links for displaying tool related information
• Import and add the tool subclass name to src/cofi/tools/__init__.py
• Add tool name and class reference to the inference_tools_table in file src/cofi/tools/__init__.py
• Fill in the last few lines of the tool file so that your new tool is registered in the inference tools tree
• Write tests for your new inference tool under tests/cofi_tools
• Format the code with black using the default project setting (in pyproject.toml)
• Prepare a relevant example under CoFI examples and raise a pull request in the cofi-examples repository
  https://github.com/inlab-geo/cofi-examples

If unsure, refer to the detailed instructions here: https://cofi.readthedocs.io/en/latest/developer/new_tool.html.

Checklist for CoFI core / utils

• Update tests to cover the new functionalities
• Update the documentation that reflects the change
• Format the code with black using the default project setting (in pyproject.toml)

If unsure, refer to the detailed instructions here: https://cofi.readthedocs.io/en/latest/developer/cofi_core.html