Support additional parameters in swarm init #323

[akiuni]

What do these changes do?

Add additional parameters to swarm init :

• DataPathPort: address or interface to use for data path traffic
• DefaultAddrPool: default subnet pools for global scope networks
• SubnetSize: subnet size of the networks created from the default subnet pool

Are there changes in behavior for the user?

no

Related issue number

#323

Checklist

• I think the code is well written
• Unit tests for the changes exist
• Documentation reflects the changes
• If you provide code modification, please add yourself to CONTRIBUTORS.txt
  • The format is <Name> <Surname>.
  • Please keep alphabetical order, the file is sorted by names.
• Add a new news fragment into the changes folder
  • name it <issue_id>.<type> for example (588.bug)
  • if you don't have an issue_id change it to the pr id after creating the pr
  • ensure type is one of the following:
    • .feature: Signifying a new feature.
    • .bugfix: Signifying a bug fix.
    • .doc: Signifying a documentation improvement.
    • .removal: Signifying a deprecation or removal of public API.
    • .misc: A ticket has been closed, but it is not of interest to users.
  • Make sure to use full sentences with correct case and punctuation, for example: "Fix issue with non-ascii contents in doctest text files."

[akiuni]

not happy about the tests because only default values seems to be working on the ci (though it's working fine on my desktop)
For example, I've been able to validate locally :

default_addr_pool = ["127.1.0.0/16", "127.2.0.0/16"]
data_path_port = 4788
subnet_size = 16

[akiuni]

It's taking time to merge and now there are some versions conflicts... I've solved them.
I don't know what to do to merge

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 81.44%. Comparing base (708e809) to head (72f4fde).
Report is 1 commits behind head on master.

❗ Current head 72f4fde differs from pull request most recent head adb5c07

Please upload reports for the commit adb5c07 to get more accurate results.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #609   +/-   ##
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  Coverage   81.44%   81.44%           
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  Files          24       24           
  Lines        1374     1374           
  Branches      245      245           
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  Hits         1119     1119           
  Misses        169      169           
  Partials       86       86           

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