Updating script to v2.5

- fixed _getOffset for Capri.
- reset gPlatformIDs in function _showPlatformIDs to prevent duplicated
entries.
- read property AAPL,ig-platform-id from ioreg and use it as default
target.
 - helper functions _hexToMegaByte, _hexToPortName and _hexToPortNumber
added.
- function _showColorizedData added.
- changed _hexToMegaByte a little.
- LVDS added to _hexToPortName.
-  _showColorizedData now also support Capri.
- cleanups and comments added.
- function _printInfo added.