Explore the option to replace cast functions (e.g byte, short, etc.) in Android with other alternatives

[slavchev]

Currently we exposed global numeric cast function that makes sense for Android platform only.

Example:
x.f(byte(5));

Alternatives:

1. x.f(__byte(5)); // use double underscore
2. x.f(Number.byte(5)); // attach cast functions to Number instead of the global object
3. x.f(SomeSpecificTNSObject.byte(5)); //attach cast functions to SomeSpecificTNSObject instead of the global object
4. ... // add any other viable alternative