Implement light bridge texture

assets/materials/effects/light_rail_beam1.ims

@@ -0,0 +1,9 @@
+-crop 32x32+32+20 
+    \(
+        +clone
+        -colorspace gray
+        -alpha off
+        -brightness-contrast 60x80
+    \)
+    -compose copy-opacity
+    -composite

assets/materials/static.skm.yaml

@@ -564,4 +564,24 @@ materials:
         s:
           wrap: false
         t:
-          wrap: false
+          wrap: false
+
+  light_rail_beam:
+    gDPSetTile:
+      filename: ../../portal_pak_modified/materials/effects/light_rail_beam1.png
+      siz: G_IM_SIZ_32b
+      fmt: G_IM_FMT_RGBA
+      s:
+        mirror: true
+      t:
+        mirror: true
+    
+    gDPSetRenderMode: G_RM_ZB_XLU_SURF
+
+    gDPSetCombineMode:
+      color: ["0", "0", "0", "TEXEL0"]
+      alpha: ["0", "0", "0", "TEXEL0"]
+
+    properties:
+      tileSizeS: 0.25
+      tileSizeT: 0.25