feat: add inline code completion

[p-spacek]

Add support for inline object completion
version 2

What does this PR do?

Implemented.
added =@ctx custom prop to detect that it's an inline completion.
we can do it configurable, but for now, it's custom functionality only for us.

Instead of:

value:
  context:
    data:
      component1:
        state:

it will be:

value: context.data.component1.state

What issues does this PR fix or reference?

#8

Is it tested? How?

added unit tests