Refactoring: move all code files into a src directory

Models/ThemeConfig/Json/RewritableConfigJson.ts

@@ -1,51 +0,0 @@
-/**
- * Rewrites and multiplies the given renderings of type T.
- *
- * This can be used for introducing many similar questions automatically,
- * which also makes translations easier.
- *
- * (Note that the key does _not_ need to be wrapped in {}.
- * However, we recommend to use them if the key is used in a translation, as missing keys will be picked up and warned for by the translation scripts)
- *
- * For example:
- *
- * ```
- * {
- *     rewrite: {
- *         sourceString: ["key", "a|b|c"],
- *         into: [
- *             ["X", 0]
- *             ["Y", 1],
- *             ["Z", 2]
- *         ],
- *         renderings: [{
- *             "key":"a|b|c"
- *         }]
- *     }
- * }
- * ```
- * will result in _three_ copies (as the values to rewrite into have three values, namely:
- *
- * [
- *   {
- *   # The first pair: key --> X, a|b|c --> 0
- *       "X": 0
- *   },
- *   {
- *       "Y": 1
- *   },
- *   {
- *       "Z": 2
- *   }
- *
- * ]
- *
- * @see ExpandRewrite
- */
-export default interface RewritableConfigJson<T> {
-    rewrite: {
-        sourceString: string[]
-        into: (string | any)[][]
-    }
-    renderings: T
-}