Fixed

• When fixing a possible problem with reading past a buffer, we slowed down total performance by about 20%. This has an alternative fix that should maintain 0.12.31/Beta 15's plotting speed - if not speed up some based on other improvements in 0.12.32.
• Certain NTFS mount points could cause an error in gulrak/filesystem. We've implemented a patch and upstreamed the issue. See gulrak/filesystem#75
• Added additional plotting testing to GitHub Actions
• Separated out the C++ build/test workflow from the Ubuntu wheel build and test.