annotation: track files

[pbordron]

We target bed and wiggle file format. For bed, only bed5 and bed9 are expected.

• bed5 and wiggle will produce heatmap
• bed9 allows user to set color for track

Load file

• [ ] bed
  • [ ] read file
  • [ ] check on upload
  • [ ] bed5
  • [ ] bed9
• [ ] wiggle
  • [ ] read file
  • [ ] check on upload

Limits

• [ ] for bed files, only 1000 (option in config file) larger are allowed
• [ ] check idx consistency