Make import of 'inventory' groups possible

[jomeier]

Hi,

I'm working on an tower export/import script and try to use tower-cli for that.

I described in this bug report that an import of inventories with groups and hosts in it will fail, because the group arrays don't have a 'name' field:

#582

This PR fixes that. Import of inventories with

tower-cli send inventory.json

now works.

I would be glad if someone could check that and accept this PR.

Thanks and best regards,

Josef

[coveralls]

Coverage decreased (-0.1%) to 63.705% when pulling d8f6f57 on jomeier:additional-name-field-in-groups into 9a22336 on ansible:master.

[jomeier]

I have no idea how to increase the code coverage. I only added one line of code with a variable assignment :-)

[AlanCoding]

If you add a line of code, then you increase the denominator for the code coverage calculation. All it means here is that the linear block of code where you added the line doesn't have coverage. For this, it's not a concern.