lib/oe/package_manager: Add list_pkgs() to PkgsList class
Currently the class PkgList returns a formated string of the
installed packages. It would be more clean to pass a standard
data structure to the callers instead to format the output
inside PkgsList class.
This patch adds list_pkgs() method to PkgsList class to get the
all the information for installed packages and return a dictionary
with the info.
[YOCTO #7427]
Signed-off-by: Mariano Lopez <mariano.lopez@linux.intel.com> Signed-off-by: Ross Burton <ross.burton@intel.com>
