Allowing user to make the server global

[elbashandy]

Fixes

Addresses #868

Summary/Motivation:

The user should be able to specify if the server should run as a localhost or as 0.0.0.0

Changes proposed in this PR:

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[codecov[bot]]

Codecov Report

Merging #875 (570e0f9) into main (f0e136f) will decrease coverage by 0.00%. The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main     #875      +/-   ##
==========================================
- Coverage   70.07%   70.06%   -0.01%     
==========================================
  Files         573      573              
  Lines       64007    64011       +4     
  Branches    12053    12053              
==========================================
+ Hits        44850    44851       +1     
- Misses      16868    16872       +4     
+ Partials     2289     2288       -1     

Impacted Files	Coverage Δ
idaes/core/ui/fsvis/fsvis.py	89.28% <100.00%> (ø)
idaes/core/ui/fsvis/model_server.py	90.14% <100.00%> (+0.18%)	:arrow_up:
idaes/ver.py	61.53% <0.00%> (-4.62%)	:arrow_down:

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[lbianchi-lbl]

Closing this as we intend to revisit the server infrastructure part for compatibility with hosted Jupyter environments (e.g. Binder).