Added tests for untagged and any from mef_eline changes

[Alopalao]

Related to mef_eline PR

Summary

Tests including the recent addition to vlan available values untagged and any.

Local Tests

+ python3 -m pytest tests/test_e2e_10_mef_eline.py -k '160 or 165 or 170 or 175 or 180 or 185 or 190 or 195 or 200 or 205' --reruns 2 -r fEr
============================= test session starts ==============================
platform linux -- Python 3.9.2, pytest-7.2.0, pluggy-1.0.0
rootdir: /tests
plugins: timeout-2.1.0, rerunfailures-10.2
collected 39 items / 29 deselected / 10 selected

tests/test_e2e_10_mef_eline.py ..........                                [100%]

[viniarck]

This sequential list access [2] on the output list of v2/flows/dpid one day might backfire. Usually, flows are returned on priority, if we ended up with other higher priority flows from other NApps it could also break this test. Since the list of the flows is expected to be relatively small it's ok to iterate on it, maybe you could refactor this part trying making sure that at least of the entries matches with the expected dict?

[viniarck]

Maybe a helper function to search for a expected dict flow in a list would be handy to reuse on other tests too.

[Alopalao]

Added a new function get_flow_by_vlan_match

[viniarck]

@Alopalao looks great to me. Nicely done covering the cases, including with inter and intra EVCs as well. The spreadsheet that you created facilitated a lot to review (and it'll be linked int the release notes), so much appreciated you creating that as well.

I'll leave this PR for @italovalcy to finish the review since you both have already been collaborating on a related review.

[italovalcy]

Very well done, @Alopalao. The overall PR looks good to me. I just left a few suggestion to remove kytos restart calls because this will already happen as part of the setup_method.