Remove hyphens from SHM and SRE names

[craddm]

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⤴️ Summary

Checks for hyphens in SHM and SRE names when creating storage accounts. Hyphens are not allowed in storage account names. It removes them if found, and prints a warning message, but then continues deploying.

🌂 Related issues

Closes #799

🔬 Tests

Deployed an SRE with a hyphen in the name in the config.

[JimMadge]

LGTM 👍