make video2x backwards compatible

adds future-fstrings package
transforms the source to .format() format on runtime

bin/exceptions.py

@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# -*- code:utf-8 -*-
+# -*- coding: future_fstrings -*-
 """
 Name: Video2X Exceptions
 Dev: K4YT3X

bin/ffmpeg.py

@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# -*- coding: utf-8 -*-
+# -*- coding: future_fstrings -*-
 """
 Name: FFMPEG Class
 Author: K4YT3X

bin/image_cleaner.py

@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# -*- coding: utf-8 -*-
+# -*- coding: future_fstrings -*-
 """
 Name: Video2X Image Cleaner
 Author: BrianPetkovsek

bin/requirements.txt

@@ -4,3 +4,4 @@ GPUtil
 psutil
 requests
 tqdm
+future-fstrings>=1.1.0

bin/upscaler.py

@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# -*- coding: utf-8 -*-
+# -*- coding: future_fstrings -*-
 """
 Name: Video2X Upscaler
 Author: K4YT3X

bin/video2x.py

@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# -*- coding: utf-8 -*-
+# -*- coding: future_fstrings -*-
 """
 
 __      __  _       _                  ___   __   __

bin/waifu2x_caffe.py

@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# -*- coding: utf-8 -*-
+# -*- coding: future_fstrings -*-
 """
 Name: Waifu2x Caffe Driver
 Author: K4YT3X

bin/waifu2x_converter.py

@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# -*- coding: utf-8 -*-
+# -*- coding: future_fstrings -*-
 """
 Name: Waifu2x Converter CPP Driver
 Author: K4YT3X