[SMSS2]: Implement command line and token parsing. Implement pagefile descriptor...

[SMSS2]: Implement command line and token parsing. Implement pagefile descriptor structure, format, flags, and parsing. They are now created as they should. Use SmpHeap instead of RtlGetProcessHeap() to keep code cleaner. Use SmpSystemRoot instead of NtSystemRoot now that it's being defined. "Environment" in registry should be parsed twice to handle nested expansions.

svn path=/trunk/; revision=55333