Added Stonehammer's Placeables

Added Stonehammer's Placeables for future work on Zelkor's Ferry.

_content/ratdog_content/sh_tablesqr03.pwk

@@ -0,0 +1,19 @@
+# Exported from NWmax 0.8 b54 at 6/9/2019 12:36:05 AM
+# pwk file
+#
+#NWmax PWKMESH  ASCII
+node trimesh ori_e01_wg
+  parent ori_e01_pwk
+  position 0.0 0.0 0.0
+  orientation 1.0 0.0 0.0 0.0
+  wirecolor 0.54902 0.54902 0.54902 
+  bitmap NULL
+  verts 4
+    -0.52 -0.52 0.0
+    0.52 -0.52 0.0
+    -0.52 0.52 0.0
+    0.52 0.52 0.0
+  faces 2
+    2 0 3  1  0 0 0  7
+    1 3 0  1  0 0 0  7
+endnode