+ Several SFX (player and impact sounds)
+ Scripts: Impact Sounds (Small Crate & Fence)

CHANGED:
+ Duplicated jump start & end animation clips to allow keyframing events (bypassing read-only clips)
+ Added additional sound functions to playerSound script

==========
ADDED:
==========
+ Tutorial puzzle (AKA GIF Puzzle) has been built.
+ New terrain added (work in progress).
+ "Resource Bay" objects (for Lift Puzzle) have been placed behind the Scaffold inner building.
+ Several interactable objects have been placed around the scaffold area.

==========
CHANGED:
==========
> Players 1 & 2 have been re-positioned to the front of the tutorial puzzle.

> The object "Resource Bay" now uses 3 x box colliders instead of the custom mesh.
  (Custom mesh was in fact less that 256 vertices, but Unity still rejected it).

> Reduced the Lighting feature "Ambient Intensity" from 1 to 0.62.

> Temporarily disabled two Lighting features to stop unnecessary rendering:
  1. Precomputed Realtime GI
  2. Baked GI

  The above features can be enabled via Windows > Lighting > Scene Tab

=================
WORK-IN-PROGRESS:
=================
- Still need to place more prop objects for visual aesthetics.
 (Please give an update on FPS numbers to see if new scaffolds and terrain have a huge effect on frame rate)
 (Personally, my PC still ran at 60 FPS)