Add from_config to PacketConfig

[ryanmelt]

Adds a helpful method to create a PacketConfig from a string.

[codecov]

Codecov Report

Attention: Patch coverage is 36.36364% with 7 lines in your changes missing coverage. Please review.

Project coverage is 76.50%. Comparing base (06e9234) to head (74fd247).
Report is 25 commits behind head on main.

Files with missing lines	Patch %	Lines
openc3/lib/openc3/packets/packet_config.rb	30.00%	7 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1663      +/-   ##
==========================================
+ Coverage   76.43%   76.50%   +0.06%     
==========================================
  Files         618      618              
  Lines       46874    46921      +47     
  Branches      849      849              
==========================================
+ Hits        35829    35897      +68     
+ Misses      10949    10929      -20     
+ Partials       96       95       -1     

Flag	Coverage Δ
frontend	56.15% <ø> (-0.04%)	⬇️
python	83.85% <ø> (-0.10%)	⬇️
ruby-api	48.82% <ø> (+1.27%)	⬆️

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[jmthomas]

Can you leave a comment above the method on why you added this and how you're using it? From IRB? From Script Runner?

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud