OpenCage: Allow manually setting `no_annotations=1` for `forward_full` and `reverse_full`

[FireFragment]

For my use case, I need to reverse geocode a place and get the full response to get access to the individual components of place name. However, I don't need any annotations. It would reduce internet usage of my app if I could override the no_annotations flag.

I propose a field no_annotations to be added to the opencage::Parameters struct. Setting it to true would pass no_annotations=1 to the API.