C# Eina.Value now has builtin support for EINA_VALUE_TYPE_OBJECT.
To avoid ambiguity with the Set method overloads, explicit casting
operators were used for wrapping/unwrapping Efl.Object instead of
implicit ones like for other value types.
Thus, to initialize an Eina.Value from an object, you can use the
var v = (Eina.Value)myObj;