Add tests for cidr, count, duration flags to hostfactory

[sigalsax]

What does this PR do?

Add UTs and integration tests for hostfactory 'create token' command

What ticket does this PR close?

Resolves JIRA

Checklists

Change log

• [ ] The CHANGELOG has been updated, or
• [x] This PR does not include user-facing changes and doesn't require a CHANGELOG update

Test coverage

• [ ] This PR includes new unit and integration tests to go with the code changes, or
• [x] The changes in this PR do not require tests

Documentation

• [ ] Docs (e.g. READMEs) were updated in this PR, and/or there is a follow-on issue to update docs, or
• [x] This PR does not require updating any documentation

[szamir1]

Add some tests. @szamir1 How can we delete cidr ? if we support it we need to test it @szamir1 How many cidr we can write in one command, do we have limitation? we need to test it as well, if we dont have any declaration test with 10 different ip's

@eladkug @sigalsax good questions! what do you mean by delete a cidr? once the restriction is given there is no ability to edit it.

regarding the limitation - I think a limitation is a must, at least for this phase, as I believe it opens a place for problems. Let's set the limitation to 10 CIDRs and add tests accordingly.