ExternalPathIosMac class

A class that provides methods to access directory paths and platform version information on iOS and macOS platforms.

This class acts as a facade for accessing the platform-specific implementation through the ExternalPathIosMacPlatform interface. It provides methods to retrieve the paths of specific directories and the platform version by delegating these calls to the current platform implementation instance.

Example usage:

final externalPath = ExternalPathIosMac();
final documentsPath = await externalPath.getDirectoryPath(directory: DirectoryType.downloads);
final macOsLibraryPath = await externalPath.getDirectoryPathMacOs(directory: MacDirectoryType.downloads);
final platformVersion = await externalPath.getPlatformVersion();