Add new test sequences

[slhck]

• [ ] 4 sources with low/high SI/TI
• [x] Content with noise or little noise
• [x] Limited/full range content
• [x] Arbitrary pattern (e.g. black/white checkerboard)
• [x] Material > 8 bit
• [ ] HDR
  • [ ] http://download.opencontent.netflix.com/?prefix=TechblogAssets/Meridian/encodes/
  • [ ] http://download.opencontent.netflix.com/?prefix=TechblogAssets/CosmosLaundromat/encodes/
  • [ ] http://download.opencontent.netflix.com/?prefix=TechblogAssets/Sparks/encodes/
• [ ] ICtCp vs. YCbCr content

Requirements:

• No copyright issues, must be licensed under CC or similar
• Short sequence duration; a few frames are sufficient

Possible sources:

• CDVL
• YouTube UGC test set: https://media.withyoutube.com/
• AOM test sequences

[slhck]

Just for checking how the test harness handles two contents, I added good old foreman_cif.y4m and an extra function to generate test CSVs along with the input files.

[NabajeetBarman]

I have open-source GamingHDRVideoSET which consists of 10-bit, HDR gaming videos. More can be read here: https://arxiv.org/abs/2103.02189. If of interest for this work, I can share the dataset access details. I do have the original captured video sequences (HEVC encoded) which I can share if of use. Also, we have the GamingVideoSET (8-bit, YUV 4:2:0) dataset.