Make examples compile and in godoc

[Brian-Williams]

This will compile the tests so that it will fail if breaking changes are made.
It will show these examples in godoc.

[Anush008]

Hey @Brian-Williams. I see you had to move the examples to the src directory for them to show in godoc.

Do you think the examples will have more visibility in godoc? I think the examples directory is more visible.
When the CI doesgo build ./..., the examples directory is also compiled.

P.S. https://pkg.go.dev/github.com/qdrant/go-client does have a reference to the examples below.

[Brian-Williams]

Hey @Anush008. Libraries like NATS sometimes do have both godoc and examples folders. If we were only going to do one I would prefer godoc, but we can always do both.

It does get built, but differently than the client. Moving the file broke CI and it needed to be updated to pass gocritic. Also, I think we could add an output and actually run some of these. If we'd prefer to just keep examples as a link to source in godoc we can close.

[Anush008]

These SDK methods are tested separately and since the examples directory is also checked during compilation, I think a reference to the examples directory in the API reference should suffice.
What do you think?