Support other primitive types through configuration

[vajda]

Problem

Currently, there is only a way to define long and double literals in configuration. This imposes limitation on several things: 1.Other types cannot be used for primitive values

a: 23
b: 234.13

a can only be of type long, but sometimes it is useful to have int, short or byte as a type. b can only be of type double, but sometimes it is useful to have float type as well.

2. Other types cannot be used in functions

   x: circular(1..250, 1)
   y: random(1.0..100.0)

   There is no way to define those ranges to be of type byte, short, int or float.

Proposed solution

Proposed solution is to use:

byteValue: byte(32)
shortValue: short(14)
explicitIntValue: int(245)
implicitIntValue: 234
longValue: long(38282)
floatValue: float(32.12)
explicitDoubleValue: double(3848.42)
implicitDoubleValue: 8829.123
circularInt: circular(int(12)..int(230), int(1))
randomFloat: random(float(0.0)..float(100.0))

Some unanswered questions:

1. Should int type be default when using implicit value or should we use long for that?
2. Should double type be default when using implicit value or should we use float for that?

My votes go to:

1. Default is int
2. Default is double

Any other syntax proposal is welcome.

[vajda]

@mgobec, @nivancevic, @nbozic, @milannister, @narezina Care to comment?