v0.5.2

What's Changed

• docs: update sundials bench, new python bench by @martinjrobins in #116
• docs: misc book fixes by @martinjrobins in #117
• feat(diffsl): multithreaded and forward/reverse sens support by @martinjrobins in #120
• refactor(diffsl): always serial and adjoint sparsity setup by @martinjrobins in #121
• docs: add forward sensitivity example to book by @martinjrobins in #123

Full Changelog: v0.5.1...v0.5.2