Add in additional naming convention length checks

[Badgerati]

When creating IaaS in Azure, certain resources having naming convention length limits (like passwords must be 12-123 chars).

Fogg doesn't check naming conventions during validation, so this issue is to add in support for the most common ones:

• Resource Group names (1-90)
• VM names (1-15)
• VM username (1-20)
• VM password (12-123)
• Storage Account names (3-24)

(for the username/password, if possible, ask 3 times if the requirements aren't met, then fail)

More can be added in later for things like availability sets.

• https://docs.microsoft.com/en-us/azure/virtual-machines/windows/faq
• https://docs.microsoft.com/en-us/azure/architecture/best-practices/naming-conventions