Changes for build 6365

Mikoverse Client Playtest

[list] [*] The voice chat system can now be toggled with F5. This will disable your voice being sent to other users as well as receiving their voice chat. [*] Fixed a crash when pressing the push-to-talk button or toggling talking (F4) with no input device. [*] Reduced VRAM usage with some custom avatars and multiple instances of the same avatar in a session. [*] Part of custom avatar loading is now asynchronous to reduce the duration of the hitch when loading. [*] Voice chat audio and attenuation have been adjusted. [*] Physics gun fixes and improvements have been made. [*] Wardrobe fixes have been made. [/list]