feat(data-point-tracers): add mermaid support

[acatl]

What:

closes #419

Checklist:

• Has Breaking changes
• Documentation
• Tests
• Ready to be merged
• Added username to all-contributors list

[codecov]

Codecov Report

Merging #420 into canary will not change coverage.
The diff coverage is 100%.

@@          Coverage Diff          @@
##           canary   #420   +/-   ##
=====================================
  Coverage     100%   100%           
=====================================
  Files          28     29    +1     
  Lines         469    483   +14     
  Branches       71     74    +3     
=====================================
+ Hits          469    483   +14

Impacted Files	Coverage Δ
packages/data-point-tracers/mermaid/mermaid.js	100% <100%> (ø)

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