Code refactoring and set up format selection

Set up format selection and archive download for next releases

server/src/interfaces/IDownloadInfo.ts

@@ -0,0 +1,14 @@
+interface IDownloadInfo {
+    formats: Array<IDownloadInfoSection>,
+    best: IDownloadInfoSection,
+    thumbnail: string,
+    title: string,
+}
+
+interface IDownloadInfoSection {
+    format_id: string,
+    format_note: string,
+    fps: number,
+    resolution: string,
+    vcodec: string,
+}