New Tool - Height Tool

[ArturRod]

• What kind of change does this PR introduce? (Bug fix, feature, docs update, ...)
  -> It is a new height measurement tool, to be able to compare height differences, for example, a hip.
• What is the current behavior? (You can also link to an open issue here)
  -> Measure height:
  

height-tool.mp4

• Does this PR introduce a breaking change? (What changes might users need to make in their application due to this PR?)
  -> Being a new tool, the user can decide to add it to their projects or not.

[codecov]

Codecov Report

Merging #1508 (eab1836) into master (dbf874f) will increase coverage by 0.06%.
The diff coverage is 31.18%.

@@            Coverage Diff             @@
##           master    #1508      +/-   ##
==========================================
+ Coverage   23.86%   23.93%   +0.06%     
==========================================
  Files         287      289       +2     
  Lines       10141    10234      +93     
  Branches     2082     2102      +20     
==========================================
+ Hits         2420     2449      +29     
- Misses       6575     6627      +52     
- Partials     1146     1158      +12     

Files Changed	Coverage Δ
src/drawing/drawHeight.js	0.00% <0.00%> (ø)
src/lib.js	100.00% <ø> (ø)
src/tools/annotation/HeightTool.js	35.80% <35.80%> (ø)

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