Binlong Li's Toolbox, as a stand alone repo in git, should be excluded in 
every project git repo. It will be push or pull sepratedly.

- matlab 
    all system widely supporting functions, such as, git, rmt, vcm
- hankel
    hankel related functions, such as, hankelConstruction, etc.
- numeric
    numeric / Array format related functions, such as, structField2Vector
- video
    video loading/saving etc operation related functions, such as, movie2var
- visual
    visualization realted functions, such as, varycolor