Generic Item Templates for VS2022 - #25

[egvijayanand]

• A revolutionary Xamarin.Forms generic item template, in XAML and C#, for creating items of any type from within Visual Studio 2022 IDE
• Both need one required input, the base type (select a value from the predefined ones or enter a value)
• Optionally takes another input, to specify the generic base type
• In addition, the XAML template takes one more input (xaml only), and when opted, generates only the XAML definition

Note: Namespace resolution in both XAML and C# files is left to the user as deriving them with the template is outside its scope.

Tip: For the XAML template, pass the xmlns scope as part of the input parameter value and it'll be used appropriately in the generated source files.

Tip: Tip: Use local scope to refer to the types in the same directory like Views. For example, local:BasePage.

[egvijayanand]

Reviewed. Good to go.