Add examples

[withinboredom]

Describe the feature

The title explains it all!

• Add a simple counter actor example
• Binding example
• Invocation example
• Pubsub example
• Secret store example
• W3C tracing example
• Examples in docs repo
• Laravel support and example (Add examples with laravel/symfony integration #82)
• Symfony support and example (Symfony integration #88)

Release Note

RELEASE NOTE: ADD Examples