Replace conditional compilation with partial classes

[AlvaroRojas]

🏗 Enhancement Proposal

The library today uses partial compilation to execute code for a specific platform.
This is hard to debug as each platform might use different classes and methods to do the same thing as other platforms.

Pitch

I propose to move to partial classes for a cleaner class structure, easier debugging and easier future contributions to the project in the future.

Platforms affected (mark all that apply)

• 📱 iOS
• 🤖 Android
• 🏁 WPF
• 🌎 UWP
• 🍎 MacOS
• 📺 tvOS
• 🐒 Xamarin.Forms