Support serialization of binary types on ReactiveHTML

[philippjfr]

ReactiveHTML can now serialize param.DataFrame and param.Array types efficiently.

[codecov]

Codecov Report

Merging #2400 (e3e2b08) into master (b72a40c) will decrease coverage by 0.00%.
The diff coverage is 77.77%.

@@            Coverage Diff             @@
##           master    #2400      +/-   ##
==========================================
- Coverage   83.54%   83.54%   -0.01%     
==========================================
  Files         185      185              
  Lines       22631    22635       +4     
==========================================
+ Hits        18907    18910       +3     
- Misses       3724     3725       +1     

Impacted Files	Coverage Δ
panel/models/reactive_html.py	80.39% <77.77%> (-0.15%)	⬇️

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