Theme format refactoring: move line properties into a seperate lineRendering configuration

Models/ThemeConfig/Json/LineRenderingConfigJson.ts

@@ -0,0 +1,30 @@
+import {TagRenderingConfigJson} from "./TagRenderingConfigJson";
+import {AndOrTagConfigJson} from "./TagConfigJson";
+
+/**
+ * The LineRenderingConfig gives all details onto how to render a single line of a feature.
+ * 
+ * This can be used if:
+ * 
+ * - The feature is a line
+ * - The feature is an area
+ */
+export default interface LineRenderingConfigJson {
+
+    /**
+     * The color for way-elements and SVG-elements.
+     * If the value starts with "--", the style of the body element will be queried for the corresponding variable instead
+     */
+    color?: string | TagRenderingConfigJson;
+    /**
+     * The stroke-width for way-elements
+     */
+    width?: string | TagRenderingConfigJson;
+
+    /**
+     * A dasharray, e.g. "5 6"
+     * The dasharray defines 'pixels of line, pixels of gap, pixels of line, pixels of gap',
+     * Default value: "" (empty string == full line)
+     */
+    dashArray?: string | TagRenderingConfigJson
+}