Make welder flames like proper unshaded lights. (#12320)

* Make welders use ToggleableLightVisualsComponent.

* Remove old code from ToolSystem.Welder.

* Update welder sprites.

Resources/Textures/Objects/Tools/welder.rsi/meta.json

@@ -20,54 +20,62 @@
       ]
     },
     {
-      "name": "off-inhand-left",
+      "name": "inhand-left",
       "directions": 4
     },
     {
-      "name": "off-inhand-right",
+      "name": "inhand-right",
       "directions": 4
     },
     {
-      "name": "on-inhand-left",
+      "name": "inhand-left-flame",
       "directions": 4,
       "delays": [
         [
           0.2,
-          0.1
+          0.2,
+          0.2
         ],
         [
           0.2,
-          0.1
+          0.2,
+          0.2
         ],
         [
           0.2,
-          0.1
+          0.2,
+          0.2
         ],
         [
           0.2,
-          0.1
+          0.2,
+          0.2
         ]
       ]
     },
     {
-      "name": "on-inhand-right",
+      "name": "inhand-right-flame",
       "directions": 4,
       "delays": [
         [
           0.2,
-          0.1
+          0.2,
+          0.2
         ],
         [
           0.2,
-          0.1
+          0.2,
+          0.2
         ],
         [
           0.2,
-          0.1
+          0.2,
+          0.2
         ],
         [
           0.2,
-          0.1
+          0.2,
+          0.2
         ]
       ]
     },