v0.3.1-rc.1

Release candidate 1 for v0.3.1. To install, copy the slimevr folder into your SteamVR drivers folder. Usually it's located in C:\Program Files (x86)\Steam\steamapps\common\SteamVR\drivers.

What's Changed

• Migrate to std::format logger by @0forks in #55

Full Changelog: v0.3.0...v0.3.1-rc.1