feat(Badge): Convert badge to typescript

[jessiehuff]

Fixes #1986

[patternfly-build]

PatternFly-React preview: https://2048-pr-patternfly-react-patternfly.surge.sh

[codecov-io]

Codecov Report

Merging #2048 into master will increase coverage by <.01%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master    #2048      +/-   ##
==========================================
+ Coverage   81.92%   81.92%   +<.01%     
==========================================
  Files         632      632              
  Lines        7279     7280       +1     
  Branches      337      338       +1     
==========================================
+ Hits         5963     5964       +1     
  Misses       1164     1164              
  Partials      152      152

Flag	Coverage Δ
#patternfly3	84.88% <ø> (ø)	⬆️
#patternfly4	78.16% <100%> (ø)	⬆️
#patternflymisc	95.68% <ø> (ø)	⬆️

Impacted Files	Coverage Δ
...ernfly-4/react-core/src/components/Badge/Badge.tsx	100% <100%> (ø)

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[codecov-io]

Codecov Report

❗ No coverage uploaded for pull request base (master@b070e65). Click here to learn what that means.
The diff coverage is 66.66%.

@@            Coverage Diff            @@
##             master    #2048   +/-   ##
=========================================
  Coverage          ?   81.85%           
=========================================
  Files             ?      632           
  Lines             ?     7342           
  Branches          ?      364           
=========================================
  Hits              ?     6010           
  Misses            ?     1163           
  Partials          ?      169

Flag	Coverage Δ
#patternfly3	84.88% <ø> (?)
#patternfly4	78.09% <66.66%> (?)
#patternflymisc	95.68% <ø> (?)

Impacted Files	Coverage Δ
...ernfly-4/react-core/src/components/Badge/Badge.tsx	66.66% <66.66%> (ø)

---

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Δ = absolute <relative> (impact), ø = not affected, ? = missing data
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[redallen]

Also add typescript: true to the md because I think it looks pretty :)

[dlabaj]

LGTM

[redallen]

It looks very pretty.