#815 change displayed Radix for int's

[Gal Aviel]

It would be highly useful to enable users to see the hex value of integers and lists of integers in the "Variables" view of the debug perspective. (i.e. small
drop down list box to allow swithing between "int"- defualt, and hex and even binary).

When working with embedded processors and writing to the processor's (or device's) registers, the bit fields are more easily seen as HEX.

Thanks !