signal router (#20802)

* add signal router sprite

* DisposalSignalRouter logic

* add disposal signal router

* add disposal signal router

* how did it work without this

* death

---------

Co-authored-by: deltanedas <@deltanedas:kde.org>

Resources/Textures/Structures/Piping/disposal.rsi/meta.json

@@ -5,7 +5,7 @@
         "y": 32
     },
     "license": "CC-BY-SA-3.0",
-    "copyright": "https://github.com/discordia-space/CEV-Eris/blob/bbe32606902c90f5290b57d905a3f31b84dc6d7d/icons/obj/pipes/disposal.dmi and modified by DrSmugleaf",
+    "copyright": "https://github.com/discordia-space/CEV-Eris/blob/bbe32606902c90f5290b57d905a3f31b84dc6d7d/icons/obj/pipes/disposal.dmi and modified by DrSmugleaf. Signal router sprites based on normal router modified by deltanedas (github).",
     "states": [
         {
             "name": "condisposal",
@@ -827,6 +827,78 @@
                     1.0
                 ]
             ]
+        },
+        {
+            "name": "signal-router",
+            "directions": 4,
+            "delays": [
+                [
+                    1.0
+                ],
+                [
+                    1.0
+                ],
+                [
+                    1.0
+                ],
+                [
+                    1.0
+                ]
+            ]
+        },
+        {
+            "name": "signal-router-free",
+            "directions": 4,
+            "delays": [
+                [
+                    1.0
+                ],
+                [
+                    1.0
+                ],
+                [
+                    1.0
+                ],
+                [
+                    1.0
+                ]
+            ]
+        },
+        {
+            "name": "signal-router-flipped",
+            "directions": 4,
+            "delays": [
+                [
+                    1.0
+                ],
+                [
+                    1.0
+                ],
+                [
+                    1.0
+                ],
+                [
+                    1.0
+                ]
+            ]
+        },
+        {
+            "name": "signal-router-flipped-free",
+            "directions": 4,
+            "delays": [
+                [
+                    1.0
+                ],
+                [
+                    1.0
+                ],
+                [
+                    1.0
+                ],
+                [
+                    1.0
+                ]
+            ]
         }
     ]
-}
+}