PAN: add application trace details for security rules

[sfraint]

Add top-level application tracing for Palo Alto security rules.
There is no recursive tracing for applications yet (similar to addresses and services).

---

For example, traces for rules matching an application might look something like this:

If the rule specifies an application group and a descendant of that group is matched:

Matched security rule RULE2
   Matched source address
      Matched address object addr2
   Matched destination address
      Matched address-group addr_group1
   Matched service application-default
      Matched application-group app_group1

or if the rule specifies an application directly, which is matched:

Matched security rule RULE2
   Matched source address
      Matched address object addr2
   Matched destination address
      Matched address-group addr_group1
   Matched service application-default
      Matched built-in application bgp

Because of how applications are matched (based on service values), they show up under the Matched service application-default trace details.

[batfish-bot]

This change is 

[codecov]

Codecov Report

Merging #6213 into master will decrease coverage by 0.02%.
The diff coverage is 80.00%.

@@             Coverage Diff              @@
##             master    #6213      +/-   ##
============================================
- Coverage     72.93%   72.91%   -0.03%     
+ Complexity    34924    34917       -7     
============================================
  Files          2826     2826              
  Lines        142237   142258      +21     
  Branches      17081    17079       -2     
============================================
- Hits         103745   103728      -17     
- Misses        30287    30314      +27     
- Partials       8205     8216      +11     

Impacted Files	Coverage Δ	Complexity Δ
...tation/palo_alto/PaloAltoTraceElementCreators.java	89.83% <57.14%> (-10.17%)	24.00 <3.00> (+3.00)	⬇️
...epresentation/palo_alto/PaloAltoConfiguration.java	87.75% <87.87%> (+0.14%)	350.00 <9.00> (+3.00)
...ish/representation/palo_alto/ApplicationGroup.java	90.90% <100.00%> (ø)	8.00 <0.00> (ø)
...g/batfish/datamodel/flow/IncomingSessionScope.java	84.61% <0.00%> (-15.39%)	7.00% <0.00%> (-1.00%)
...src/main/java/org/batfish/coordinator/PoolMgr.java	55.55% <0.00%> (-4.94%)	14.00% <0.00%> (-2.00%)
...rg/batfish/identifiers/StorageBasedIdResolver.java	88.88% <0.00%> (-4.45%)	27.00% <0.00%> (ø%)
.../org/batfish/dataplane/rib/RouteAdvertisement.java	84.78% <0.00%> (-4.35%)	16.00% <0.00%> (-1.00%)
...c/main/java/org/batfish/dataplane/rib/RibTree.java	89.58% <0.00%> (-4.17%)	27.00% <0.00%> (-1.00%)
...ain/java/org/batfish/symbolic/IngressLocation.java	65.78% <0.00%> (-2.64%)	15.00% <0.00%> (-1.00%)
...main/java/org/batfish/datamodel/acl/AclTracer.java	60.37% <0.00%> (-1.26%)	43.00% <0.00%> (-1.00%)
... and 6 more

[dhalperi]

Reviewed 6 of 6 files at r1.
Reviewable status: complete! all files reviewed, all discussions resolved