Add a way to select the resolution. Use 1080p by default

Fix #58

src/interface/IConfig.d.ts

@@ -14,4 +14,7 @@ interface IConfig {
   series?: string;
   filename?: string;
   tag?: string;
+  resolution?: string;
+  video_format?: string;
+  video_quality?: string;
 }

src/interface/IResolData.d.ts

@@ -0,0 +1,4 @@
+interface IResolData {
+  quality: string;
+  format: string;
+}