wgui: Parser: <template> initial support (wip)

wgui/uidev-vk/assets/gui/templates.xml

@@ -0,0 +1,19 @@
+<layout>
+  <template name="MenuButton">
+    <rectangle
+      width="120"
+      height="82"
+      round="8"
+      border="2"
+      border_color="#FFFFFF77"
+      color="#00000033"
+      align_items="center"
+      justify_content="center"
+      flex_direction="column"
+      gap="8"
+    >
+      <sprite src="dashboard/apps.svg" width="32" height="32" />
+      <label weight="bold" color="#FFFFFF" size="18" text="I'M A TEMPLATE" />
+    </rectangle>
+  </template>
+</layout>