[DEV] add func's documents using codeium doc string

[DEV] upgrade fps from 8 to 11

[DEV] bug fix the scale about center of iris

[DEV] record and capture about viewing center of camera

[DEV] add func about record from camera

[DEV] add func about merging 2 video

[DEV] checking pupil detector

[DEV] Add CNN detector(very slow) - video_eye_tracker_01-1.py

[DEV] fix bug - gaze vector from eyeball to pupil

[DEV] support 2 more person

[DEV] link center of pupil with low pass filter

[DEV] sudo code - low pass filter about center of pupil

[DEV] add '5' key about gaze method three

[DEV] add low pass filter func (test code)

[DEV] update speed up 4->12 fps