feat(ios): add openInSystemBrowser

[OS-ricardomoreirasilva]

• This adds a new OSInAppBrowserInputArgumentsSystemBrowserModel structure that transforms all data to the required types requested by the library.
• Create an error enumerator to deal with all errors.
• Remove the External Browser RouterAdapter class as this now belongs to the library.
• Add the default parameters for all Options.
• Create an OpenInSystemBrowserParameterModel type with the method's parameters. This uses the one used for ExternalBrowser to get the URL.
• Update the Example App to test the new feature.

References: https://outsystemsrd.atlassian.net/browse/RMET-3423 References: https://outsystemsrd.atlassian.net/browse/RMET-3429

https://github.com/ionic-team/capacitor-os-inappbrowser/assets/97543217/add808ae-8505-43e8-9d8c-8ab0ae156855