lib2813 2.0.0 Release Canidate 3

What's Changed

• Hacks to avoid SIGSEGV in tests that call Preferences.setNetworkTableInstance() by @kcooney in #129
• Do a full depth clone by @cuttestkittensrule in #130
• Add annotations for JUnit Jupiter extensions by @kcooney in #128
• Add vendor-ctre project by @kcooney in #127
• Migrate remaining JUnit4-style tests in lib to JUnit Jupiter by @kcooney in #124
• Remove outdated note in README.md by @cuttestkittensrule in #133
• Add vendor-rev project by @kcooney in #131
• Update README to discuss vendor-{ctre,rev} by @kcooney in #135
• Fix the reference to vendor-rev by @cuttestkittensrule in #137
• Minor cleanups to MultiPhotonPoseEstimator by @kcooney in #138
• Rename 'lib' to 'core' by @kcooney in #136

Full Changelog: 2.0.0-rc-2...2.0.0-rc-3