use installed azcopy if the packaged azcopy versions are not compatable

[bmc-msft]

Summary of the Pull Request

This checks if the azcopy we provide are compatible with the host used for deployment and otherwise makes use of the user-installed azcopy.

This enables deployment on non-x86_64 Linux/Windows platforms (such as OSX)

PR Checklist

• Applies to work item: OSError: [Errno 8] Exec format error: 'tools/linux/azcopy' #120
• CLA signed. If not, go over here and sign the CLI.
• Tests added/passed
• Requires documentation to be updated
• I've discussed this with core contributors already. If not checked, I'm ready to accept this work might be rejected in favor of a different grand plan. Issue number where discussion took place: #xxx

Info on Pull Request

1. The deployment scripts still prefer the built-in azcopy, but will use the system provided azcopy if our built-in versions are incompatible.
2. Addresses lint issues in the deploy code
3. Adds missing copyright to code written by MSFT

Validation Steps Performed

Run deployment from a linux/x86_64 platform and an OSX platform. Both should succeed.