Samples for standalone activities

[yuandrew]

Is your feature request related to a problem? Please describe.

New feature, #706

Describe the solution you'd like

Once the new non-workflow feature is completed, we should have samples in each samples-sdk repo to showcase this new feature.

Additional context

Per-SDK Tickets

• Go - Sample request: standalone activities samples-go#445
• Java -
• Core -
• TypeScript -
• Python - [Feature Request] standalone activity sample samples-python#274
• .NET -
• Ruby -
• PHP -
• Temporal CLI -