Add display format as Hex numbers or binary numbers

[nduvernois]

In some cases, we read data from PLC's that are bit fields. We typically read them as 2 bytes unsigned integer. But actually reading 3196 doesn't mean anything. Reading 0x0C7C or 0000 1100 0111 1100 is actually more significant. Possible solution : in the display formats, we have Analog / Simple / Range / Text. It could be worth adding "Binary" and "Hexa".

[Limraj]

@nduvernois, your proposal seems like a good idea.