Photoviewer

## Plugin Request

**Name**: Photoviewer
**Package**: `@capacitor-community/photoviewer`

### Platform(s)

- Android

- iOS

### Existing Solutions
https://github.com/sarriaroman/photoviewer

### Description
The plugin should be able to open an image by url or base64 in fullscreen, zoom, optionaly support title of image, sharing, close with back button. In general, everything that the existing cordova plugin can do. Spinner with loading progress and support a bunch of images would be great additional feature.

Start by reviewing the existing Cordova plugin at https://github.com/sarriaroman/photoviewer and compare its behavior with the requested Android and iOS platforms. Define the plugin entry points and scope from the listed requirements: fullscreen image display from a URL or base64, zoom, optional title, sharing, back-button closing, loading progress, and multiple images. Done means these capabilities are implemented and verified on both platforms.

Written by the indexing model from the issue text.