rewrite to typescript

[pveyes]

resolve #80
resolve #52
resolve #79
resolve #81
resolve #78
resolve #77
resolve #70
resolve #59

[codecov]

Codecov Report

Merging #83 into master will decrease coverage by 0.21%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master      #83      +/-   ##
==========================================
- Coverage   98.78%   98.57%   -0.22%     
==========================================
  Files           5        5              
  Lines         165      140      -25     
  Branches       40       41       +1     
==========================================
- Hits          163      138      -25     
  Misses          2        2

Impacted Files	Coverage Δ
src/utils.ts	100% <ø> (ø)
src/browser.ts	100% <100%> (ø)
src/mapAttribute.ts	94.44% <100%> (ø)
src/server.ts	97.82% <100%> (ø)
src/convertStyle.ts	100% <100%> (ø)

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