parse metadata in utils.parsing.parse_eyelink

[dkrako]

Description of the problem

The header of an asc file has a lot of metadata which we can parse.

Description of a solution

Instead of just returning a dataframe, the function then should return a tuple of a dataframe and a dictionary with parsed info

Minimum acceptance criteria

• [x] parsing recording datetime
• [x] parse eye tracker model and version
• [x] parse tracker mount info
• [x] parse display resolution
• [x] get pupil size data type
• [x] parse sampling rate
• [x] parse filter setting
• [ ] parse TRACKING
• [ ] parse CR
• [ ] parse VEL
• [ ] parse RES
• [ ] parse HTARG
• [ ] parse INPUT
• [ ] parse BUTTONS
• [ ] parse LEFT
• [ ] parse RIGHT
• [ ] infer if monocular

Context

the eyelink_parser from eyelinker is a good reference for implementation: https://github.com/cran/eyelinker/blob/master/R/eyelink_parser.R

https://cran.r-project.org/web/packages/eyelinker/vignettes/format.html