Step Functions - Updated State Machine to support logging, tracing & encryption config.

[zkarpinski]

Added additional configuration support for the SFN State Machines with Create, Describe & Update endpoints.

• encryptionConfiguration
• loggingConfiguration
• tracingConfiguration

[codecov]

Codecov Report

Attention: Patch coverage is 79.31034% with 6 lines in your changes missing coverage. Please review.

Project coverage is 94.53%. Comparing base (43410b9) to head (5e820ea).
Report is 6 commits behind head on master.

Files with missing lines	Patch %	Lines
...source_providers/aws_stepfunctions_statemachine.py	0.00%	5 Missing ⚠️
moto/stepfunctions/parser/backend/state_machine.py	50.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #8200      +/-   ##
==========================================
- Coverage   94.53%   94.53%   -0.01%     
==========================================
  Files        1155     1155              
  Lines       99707    99815     +108     
==========================================
+ Hits        94261    94363     +102     
- Misses       5446     5452       +6     

Flag	Coverage Δ
servertests	28.83% <0.00%> (-0.01%)	⬇️
unittests	94.50% <79.31%> (-0.01%)	⬇️

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[zkarpinski]

@bblommers Not sure how to reach that bit of missed coverage. Wondering if you could take a quick look when you have a chance.

[bblommers]

LGTM!

The entire stepfunctions parser has been borrowed from Localstack. I think that they use the resource_providers to automatically serialize the response. But none of the files in that folder are used in Moto, so adding code to it will drop the code coverage a bit.

I'll merge it as is - the entire parser implementation needs a bit more attention anyway; there are also other code snippets that are no longer used, a ton of functionality that we don't have tests for, etc.

But I'll leave that for another day, there's no need to block this PR. Thank you @zkarpinski!