Pyscamp fix: This release fixes pyscamp by including the appropriate files in the sdist.
Performance Improvments: CPU kernels now use Eigen, improving performance on various platforms. Now auto-detects and enables AVX when using MSVC

What's Changed

• Use Eigen to improve readability and cross-platform performance of CPU kernels. by @zpzim in #86
• Fix pyscamp sdist to include the appropriate files to build the distribution by @zpzim in #90
• Refactor benchmarks suite, add gpu benchmarks. by @zpzim in #88
• Add various improvements to compile options. Including Automatic AVX detection for MSVC. by @zpzim in #91
• Apply optimizations to CPU Kernel reductions to improve performance on various toolchains. by @zpzim in #93

Full Changelog: v2.1.2...v2.1.3