[Libvirt-cim] [PATCH 0 of 3] Memory devices from XML and raw XML parsing

[Dan Smith]

This patch set:
- Moves memory device parsing to use XML like the rest
- Restructures the entry points of device-only parsing to share
  more code
- Adds a function to parse plain XML into a dominfo structure for
  times where we don't have a virDomainPtr
- Updates the xml_parse_test program to allow testing of the aforementioned
  function, as well as clean up the option parsing to make way for more
  features later