Add support for new Dependent Account APIs

[lukeroberts]

Is your feature request related to a problem? Please describe.
CyberArk with v14.6 has released new API endpoints to allow for Dependent Account get/add/modify/removal/etc
https://docs.cyberark.com/pam-self-hosted/latest/en/content/webservices/dependent-accounts.htm

Describe the solution you'd like
Add relevant cmdlets to use these new APIs

Additional context
ER that was just set to 'delivered': https://community.cyberark.com/s/article/Account-UsagesDependencies-API-LQAY
It looks to be released in the self-hosted version only at this time
-- UPDATE --
Was just told by my account rep that this will be released for priv cloud in v14.7: https://community.cyberark.com/s/article/ER--REST-API--Create-Usage-2723-557

[lukeroberts]

Looking at this again, I'm not certain if privilege cloud shared services has a slightly different implementation?: https://docs.cyberark.com/privilege-cloud-shared-services/latest/en/content/privilegecloudapis/account-dependents-cpm.htm

[pspete]

Hi Luke,
development to support the self hosted dependent accounts APIs is currently in progress.
We will look at the support for Privilege Cloud and if it requires any changes soon.

[lukeroberts]

Great; I started some code here specifically for priv cloud version, but then realized you were already working on it