Add test to verify PackageMonitor implementation respects app visibility

Because the coretests shareUserId makes the test hard to verify the
app visibility, this change moves PackageMonitor tests to a specific
module. The module doesn' have the shareUserId, we can verify app
visibity with the install parameter force-queryable.

Bug: 289567218
Test: atest FrameworksCorePackageMonitorTests
Change-Id: Ib9472b407680c26501d662bc4f235f442e213414