v0.2.2-rc.1

Release candidate for 0.2.2, which includes sending tracker battery support.
To install, copy the slimevr folder in your SteamVR drivers folder, usually it's located in C:\Program Files (x86)\Steam\steamapps\common\SteamVR\drivers.

What's Changed

• Fix Linux CI by @kitlith in #36
• Display SlimeVR Tracker Battery Life by @NWBx01 in #41

Full Changelog: v0.2.1...v0.2.2-rc.1