v2.0.0

• Change the function name to lowercase.
• Add four models: NTIRE 2021 Video Super-Resolution, Video Deblurring (DVD), Video Deblurring (GoPro), and Video Denoising.
• Rename interval parameter to length.
• Rename tile_x and tile_y parameters to tile_w and tile_h respectively.
• Remove device_type parameter.
• Remove fp16 parameter. Now it's controlled by the format of the input.