Ability to add policy list as a web hosted JSON (eg on GitHub) and used as a parameter

[astrugatch]

Is your feature request related to a problem? Please describe.
Not a problem, just an enhancement

Describe the solution you'd like
Pull the policy list from github as a json

Additional context
I do this with SYM now and it make the script infinitely re-usable in various scenarios without maintaining multiple copies.

[astrugatch]

Feature is currently sort-of part of SYM around current line 920

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# Thanks, @astrugatch: I added this line to global variables:
# jsonURL=${10} # URL Hosting JSON for policy_array
#
# And this line replaces the entirety of the policy_array (~ line 503):
# policy_array=("$(curl -sL $jsonURL)")
#
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