Refactoring: move all code files into a src directory

src/UI/BigComponents/SimpleAddUI.ts

@@ -0,0 +1,21 @@
+/**
+ * Asks to add a feature at the last clicked location, at least if zoom is sufficient
+ */
+import BaseUIElement from "../BaseUIElement"
+import PresetConfig from "../../Models/ThemeConfig/PresetConfig"
+import FilteredLayer from "../../Models/FilteredLayer"
+
+/*
+ * The SimpleAddUI is a single panel, which can have multiple states:
+ * - A list of presets which can be added by the user
+ * - A 'confirm-selection' button (or alternatively: please enable the layer)
+ * - A 'something is wrong - please soom in further'
+ * - A 'read your unread messages before adding a point'
+ */
+
+export interface PresetInfo extends PresetConfig {
+    name: string | BaseUIElement
+    icon: () => BaseUIElement
+    layerToAddTo: FilteredLayer
+    boundsFactor?: 0.25 | number
+}