Option to search in the choice dialog that opens from MaterialTextInput

[Chasyl]

🚀 Feature Requests

We should have the option to search in the choice dialog that opens from MaterialTextInput

Contextualize the feature

It would be useful to add a search option in the choice dialog that opens from MaterialTextInput incase of long choice lists

Describe the feature

For this feature to work there are a few things required:

1. SearchProperty
2. SearchCommandProperty
3. SearchPlaceholderProperty
4. SearchTextColorProperty

Platforms affected (mark all that apply)

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