Add basic routes to migration

[jcronenberg]

Problem

Only basic gateway migration

Solution

Add routes migration
Development note: I got rid of the gateway parsing because essentially adding a route has the same effect. If there is a single gateway it would probably be nicer to add it as a gateway but I wanted to keep it simple (stupid 🙂). Let me know if you disagree.

Fixes #13

Testing

• Existing unit test
• Added new integration test
• Tested manually

[github-actions]

Pull Request Test Coverage Report for Build 7004642045

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 7 unchanged lines in 1 file lost coverage.
• Overall coverage increased (+2.6%) to 50.709%

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Files with Coverage Reduction	New Missed Lines	%
rust/src/interface.rs	7	86.34%

Totals
Change from base Build 6972644851:	2.6%
Covered Lines:	143
Relevant Lines:	282

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💛 - Coveralls

[cfconrad]

I agree with your simplicity!
I only would use 0.0.0.0/0 instead of <gatewayip>/0 for the default gateways destination. I think it's more common.

[cfconrad]

LGTM