flutter_pdfview_platform_interface 1.0.0

A common platform interface for the flutter_pdfview plugin.

1.0.0

• Initial release, extracted from flutter_pdfview 1.5.0.
• Adds FlutterPdfViewPlatform, PdfViewPlatformController, PdfViewCreationParams, PdfViewSettings and PdfViewCallbacks.
• Ships MethodChannelFlutterPdfView, the default implementation backed by the plugins.endigo.io/pdfview platform view and the per-view plugins.endigo.io/pdfview_<id> method channels. The wire format is unchanged from flutter_pdfview 1.5.0, so existing native implementations keep working.
• Moves the shared value types (FitPolicy, PageAlignment, PdfColorMode, PDFPasswordFailure, and the callback signatures) here; flutter_pdfview re-exports them, so app code needs no changes.