Members listing via the CLI and API: add sort options, filter by MFA and SSO status

Currently, checkly members displays MFA and SSO status as columns in the output, but there's no way to filter them from the CLI or API. Additionally, there are no built-in ‘sort’ options for any of the columns.

It would be helpful to have:

• Filters for MFA and SSO

• Ability to sort by relevant columns