Patch v0.20.1

- [Balancing] reduce end of round damages for dune gazers
- [VR] set resolution scale parameter to 75% by default (to help with performance)
- [VR] added a visual setting "Enable Texture Streaming" that can be disabled for better performances (especially on SteamVR headsets that experience jittery image). Please note this necessitates a graphics card with at least 8Gb of video memory.
- [Fix] Fix UI FX on Victory/Defeat panel