We may read the installed package information from the 'vcpkg list'
command instead of parsing the vcpkg.json. Also instead of using
the jq as a parser, use the cmake script. This allows skipping the
jq installation.
Change-Id: Id3ace62f8f40ff1bd059878da3fd13e466861830
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>