Adding a third party tutorial

[osianSmith]

I created a tutorial along with putting code on GitHub and was hopping to have it publicised?

[codecov-io]

Codecov Report

Merging #2604 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #2604   +/-   ##
=======================================
  Coverage   19.65%   19.65%           
=======================================
  Files         112      112           
  Lines       13717    13717           
=======================================
  Hits         2696     2696           
  Misses      11021    11021

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[liuxuan30]

Any highlight for creating the line chart?

[osianSmith]

This was written was my use case for charts was for line charts and I found it a little hard to figure how to do them out at first with the demo being in object-c.
Certain use cases need different graphs and I thought I could help out on creating one for line graphs, such as showing in-between recordings a statistical estimate without a artificial intelligence being taught (such as how many people are likely to be in a shop if you take samples every 15 minutes).