Provide tooling to migrate examples to v2

[peombwa]

We should provide tooling to migrate examples to v2. The tool should be built in such a way that customers can use it to migrate from v1 to v2.

The tool should:

• Rename existing beta example file names to match new beta command names, i.e., VERB-MgBetaNOUN.md. See msgraph-sdk-powershell/src/Users/Users/examples/v1.0-beta at dev · microsoftgraph/msgraph-sdk-powershell (github.com).
• Find and replace commands in the examples to match new beta command names.

This task will involve:

1. Generating modules locally while on the features branch
2. Checking first if example files exist on the feature branch before copying v1.0 and beta example files from dev branch
3. Conforming the cmdlets to the naming convention as per the design design doc

[peombwa]

@timayabi2020, please close the issue if the work to migrate the examples is complete.