Water pistol test assets added

models/wpn_waterpistol.fbx.assets/Material.material.lx

@@ -0,0 +1,7 @@
+material = {
+  basis = "func_luxe: basis/mesh.textured"
+  inputs = {
+    image.image = "func_luxe: texture_default/grid.wall"
+    mesh.color = [0.8 0.8 0.8 1] // mesh.color
+  } // inputs
+} // material