Beta Branch Update: Build 152 - Creeper, VR height adjustment, bugs

A new update (Build 152) is now on the Steam beta branch.

Added creeper object to enable desktop and VR users to work under the car.

Interact with the creeper head rest to use the creeper.

Move using normal inputs (slower than normal, and VR teleport is disabled).

Desktop: Rotate creeper with creeper turn inputs (default left/right angle brackets).

Desktop: Exit creeper by standing up (default space bar).

VR: Exit the creeper by adjusting crouch/stand height (see below).

VR:

Allow VR players to crouch/stand, enabling better play for seated users.

Hold forward on the right thumbstick/pad to enter crouch/stand adjust mode.

While in crouch/stand adjust mode, use the left thumbstick/pad forward/back to adjust standing height.

While in crouch/stand adjust mode, press the use button to reset standing height.

Automatically reset location and crouch/stand height under some conditions (e.g. putting head through wall/floor)

Desktop:

Restrict minimum crouch height.

Add missing 29mm socket to impact socket kit. Minor tweaks and bugfixes.