feat: ionic googleMap getCameraPosition()

## Feature Request

### Description

Add a new method named `getCameraPosition()` that let you get the actual map position

### Platform(s)

[capacitor](https://capacitorjs.com/docs/apis/google-maps) cross platform

### Preferred Solution

https://developers.google.com/earth-engine/apidocs/map-getcenter

### Alternatives

### Additional Context