ShellPkg: refine command line parsing

Correctly divide up parameters for Argc/Argv including quote ("), escape (^), and space ( ) processing.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jaben Carsey <Jaben.carsey@intel.com>
Reviewed-by: Joe Peterson <joe.peterson@intel.com>
Reviewed-by: Tapan Shah <tapandshah@hp.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16673 6f19259b-4bc3-4df7-8a09-765794883524
3 files changed