Fixes for L1-3 exams name change

Merge pull request #13 from aristanetworks/fix-topo-names

re-add L1-3 due to naming issue

Release for L3v2 (L1-3)

• Update name to L3v2

L1-2 and L2-2 Exam fixes

• Update ADT-INFRA for the L1-2 and L2-2 exams

Release for L1-3 update in PROD

• Update L1-3
• Add L1-3 updated image

May Release

• Self-grading data to db
• Default timer to 12 hours

Fix for noif issue

• Add a script to fix the noif issue in the L7 exam.
  This script will not work unless an interface is already configured.

Exam fixes

• Updates to the exam topos only for l1-2 and l2-2

Fix start configs

2021.3-3.16-L7-2

update for L7

Update specific to L7

• Remove the borderleaf start config on DC1

March release for l4 v2

• New l4 v2 topo