[Libguestfs] [PATCH v2 0/3] New inspect_list_applications2 API

Here's the new API method and update to virt-inspector. I still need to implement app_arch for debian and windows (if applicable), for now they just return empty strings. New in v2: incorporated feedback from v1, also added patch #3 which updates the documentation where it references the deprecated API. Take it or leave it.