Pipe painter (now with airlock painter) (#19031)

* Add a pipe painting function to the airlock painter

Signed-off-by: c4llv07e <kseandi@gmail.com>

* Rename engineer painter to omnipainter

Signed-off-by: c4llv07e <kseandi@gmail.com>

* review changes

Signed-off-by: c4llv07e <kseandi@gmail.com>

* fix migration duplicate

Signed-off-by: c4llv07e <kseandi@gmail.com>

---------

Signed-off-by: c4llv07e <kseandi@gmail.com>

Content.Shared/SprayPainter/SprayPainterEvents.cs

@@ -0,0 +1,69 @@
+using Content.Shared.DoAfter;
+using Robust.Shared.Serialization;
+
+namespace Content.Shared.SprayPainter;
+
+[Serializable, NetSerializable]
+public enum SprayPainterUiKey
+{
+    Key,
+}
+
+[Serializable, NetSerializable]
+public sealed class SprayPainterSpritePickedMessage : BoundUserInterfaceMessage
+{
+    public int Index { get; }
+
+    public SprayPainterSpritePickedMessage(int index)
+    {
+        Index = index;
+    }
+}
+
+[Serializable, NetSerializable]
+public sealed class SprayPainterColorPickedMessage : BoundUserInterfaceMessage
+{
+    public string? Key { get; }
+
+    public SprayPainterColorPickedMessage(string? key)
+    {
+        Key = key;
+    }
+}
+
+[Serializable, NetSerializable]
+public sealed class SprayPainterBoundUserInterfaceState : BoundUserInterfaceState
+{
+    public int SelectedStyle { get; }
+    public string? SelectedColorKey { get; }
+    public Dictionary<string, Color> Palette { get; }
+
+    public SprayPainterBoundUserInterfaceState(int selectedStyle, string? selectedColorKey, Dictionary<string, Color> palette)
+    {
+        SelectedStyle = selectedStyle;
+        SelectedColorKey = selectedColorKey;
+        Palette = palette;
+    }
+}
+
+[Serializable, NetSerializable]
+public sealed class SprayPainterDoAfterEvent : DoAfterEvent
+{
+    [DataField("sprite")]
+    public readonly string? Sprite = null;
+
+    [DataField("color")]
+    public readonly Color? Color = null;
+
+    private SprayPainterDoAfterEvent()
+    {
+    }
+
+    public SprayPainterDoAfterEvent(string? sprite, Color? color)
+    {
+        Sprite = sprite;
+        Color = color;
+    }
+
+    public override DoAfterEvent Clone() => this;
+}