Add enhanced house presentation, client film and walkable Unreal prototype

unreal/unreal-build-checks.json

@@ -0,0 +1,16 @@
+{
+  "meshes": 229,
+  "materials": 117,
+  "collision_meshes": 179,
+  "first_person_class": "<Object '/Game/Homestead/Walkthrough/BP_HomesteadWalker.BP_HomesteadWalker_C' (0xb55aea97000) Class 'BlueprintGeneratedClass'>",
+  "spawn_blender_metres": [
+    0,
+    4.55,
+    2.03
+  ],
+  "level_saved": true,
+  "movement_test": "PASS: saved level, eight floor traces and possessed character walking from verandah into living entry",
+  "render": "Actual Unreal overview and verandah captures completed",
+  "lighting": "Northeast sun, architectural fill and Lumen GI",
+  "walk_distance_cm": 345.3995991206726
+}