* Added several functions for assisting with marshalling layouts.
  * isInlineElement.
  * hasInlineElements.
* Tested marshalStackArguments.
* zudi_layout_get_size() now returns a word-aligned size.
* zudi_layout_get_size() now takes a "inlineElementsAllowed" argument, which
  tells it whether or not to error on finding inline elements.
* Added checks for error return values from all layout parser functions.
* Added support for the UDI_PHYSIO layout types.
* New inline function, align, a template function that
* Fixed a bug in startDeviceReq which caused it to fail to stop the excess
  threads from getting through.