Fix regex and both for import and export route-targets NXOS #843
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Description
I have changed the regex pattern for matching route-target to include ':'.
A ':' is required when configuring a import/export route-target.
I have also fixed, so a route-target can be 'both' imported and exported at the same time.
Motivation and Context
This fixes the "show running-config vrf {vrf} | sec '^vrf'" command on NXOS.
Before route-targets would not be parsed, and not appear in parsed output.
Impact (If any)
No negative impact, as this did not work previously.
Screenshots:
Checklist: