Add eww bar

This configuration was simply copied from my old Arch Linux system.
There are some issues that still need to be solved, namely with fonts
and missing bitcoin price script, but it's mostly minor.

home/programs/graphical/bars/eww/config/modules/gammarelay.yuck

@@ -0,0 +1,41 @@
+(defwidget gammarelay_module []
+  (box
+    :class "module gammarelay"
+
+    (eventbox
+      :onscroll "scripts/gammarelay temperature scroll {}"
+      :onclick "scripts/gammarelay temperature set toggle"
+      :onrightclick "scripts/gammarelay temperature set off"
+      :tooltip "${temperature} K"
+      :class "temperature"
+      (box
+        (label
+          :class "icon"
+          :text "")
+    ))
+
+    (eventbox
+      :onscroll "scripts/gammarelay brightness scroll {}"
+      :onclick "scripts/gammarelay brightness set toggle"
+      :onrightclick "scripts/gammarelay brightness set off"
+      :tooltip "${brightness}%"
+      :class "brightness"
+      (box
+        (label
+          :class "icon"
+          :text "")
+    ))
+
+    ; (eventbox
+    ;   :onscroll "scripts/gammarelay gamma scroll {}"
+    ;   :onclick "scripts/gammarelay gamma set toggle"
+    ;   :onrightclick "scripts/gammarelay gamma set off"
+    ;   :tooltip "${gamma}%"
+    ;   :class "gamma"
+    ;   :valign "top"
+    ;   (box
+    ;     (label
+    ;       :class "icon"
+    ;       :text "γ")
+    ; ))
+  ))