Ssh tunnel use case

[amcconnellcloud]

Added RDP, SMB, and SSH use cases for tunnel docs

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[ranbel]

@nmldiegues As the person who will be maintaining the docs, I agree that we should try to make this information more reusable and digestible. From a brief glance, the contents definitely seem more like a Tutorial than a How-To. Aron and I can work together on revising the docs structure and location.

[ranbel]

#5795