Add two layer convolutional LCA

[Gavinator98]

Issue Number:

Objective of pull request:

Add convolution support to LCA

Pull request checklist

Your PR fulfills the following requirements:

• [ ] Issue created that explains the change and why it's needed
• [ ] Tests are part of the PR (for bug fixes / features)
• [ ] Docs reviewed and added / updated if needed (for bug fixes / features)
• [X] PR conforms to Coding Conventions
• [X] PR applys BSD 3-clause or LGPL2.1+ Licenses to all code files
• [ ] Lint (pyb) passes locally
• [ ] Build tests (pyb -E unit) or (python -m unittest) passes locally

Pull request type

Please check your PR type: - [ ] Bugfix - [X] Feature - [ ] Code style update (formatting, renaming) - [ ] Refactoring (no functional changes, no api changes) - [ ] Build related changes - [ ] Documentation changes - [ ] Other (please describe): ## What is the current behavior?

• LCA only supports dense weights

What is the new behavior?

• LCA now also supports convolutional weights

Does this introduce a breaking change?

• [ ] Yes
• [X] No

Supplemental information