This patch validates the structure of the XML files given before they are
further used by the rest of the configurator. With this validation process,
the configurator confirms the XML files are well-structured and can thus
access certain nodes and contents without checking their existence or data
types.
Upon validation failure, an alert will pop up informing the user that the
given XML file is ill-formed. No further details are given as of now
because we assume users should not care about the internal structure of
those files.
Tracked-On: #6691
Signed-off-by: Junjie Mao <junjie.mao@intel.com>
Junjie Mao