Bug fix for double initiation of directory transfer

[shnayak-msft]

Description

• Feature / Bug Fix:

1. Remove UseSyncOrchestrator in local traverser. This caused enumeration in loop. If this is required to include directories without sub directories that needs to handled differently
2. In case of a directory tree update due to an addition of sub directory, there was double copy transfer triggered with sync orchestrator.
3. Added source scan metrics counter to sync orchestrator

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Type of Change

• Bug fix
• New feature
• Documentation update required
• Code quality improvement
• Other (describe):

How Has This Been Tested?

Thank you for your contribution to AzCopy!

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