v8.0

allow multiple packages to modify the same file
allow multiple patch files for each active file
fixed: PackageManager hangs if there is no setup script in package directory
fixed: "Once" download scan doesn't check all packages
fixed: PackageManager hangs on Python 2 (Venus OS prior to v2.80)
use HelperResources only from SetupHelper (not from package directory)
this was necessary because /data/SetupHelper/patch
is now used in place of the stock patch executable
moved SetupHelper logging to /var/log/PackageManager/current
from /var/log/SetupHelper
added Recheck button for errors discovered in setup script prechecks
PackageManager now completes pending operations before exiting
add TailscaleGX to default package list
updatePackage: added patch options including MANUAL to prevent automatic patch updates
updatePackage: rewrite update file sets loop for speed improvement