Added ffmpeg progress bar via fluent-ffmpeg and progress libs (#57)

* Add fluent-ffmpeg back and cross-platform progress bar

* Repo clean up

Move ts files to src, build and output js files to build folder

* Do not print messages when exit code is 0

this is triggered by signal events

Co-authored-by: kylon <kylonux@gmail.com>

src/Thumbnail.ts

@@ -0,0 +1,14 @@
+import terminalImage from 'terminal-image';
+import axios from 'axios';
+
+
+export async function drawThumbnail(posterImage: string, accessToken: string) {
+    let thumbnail = await axios.get(posterImage,
+        {
+            headers: {
+                Authorization: `Bearer ${accessToken}`
+            },
+            responseType: 'arraybuffer'
+        });
+    console.log(await terminalImage.buffer(thumbnail.data));
+}