ASA: extract snmp source-interface and trap servers

[dhalperi]

Split parser along ASA lines to better support this syntax.

Docs: https://www.cisco.com/c/en/us/td/docs/security/asa/asa90/configuration/guide/asa_90_cli_config/monitor_snmp.html

Fix #6426

[batfish-bot]

This change is 

[codecov]

Codecov Report

Merging #6456 (3cca1ce) into master (46b6ff8) will decrease coverage by 0.01%.
The diff coverage is 57.14%.

@@             Coverage Diff              @@
##             master    #6456      +/-   ##
============================================
- Coverage     73.18%   73.17%   -0.02%     
+ Complexity    35400    35394       -6     
============================================
  Files          2820     2820              
  Lines        143247   143257      +10     
  Branches      17302    17305       +3     
============================================
- Hits         104838   104830       -8     
- Misses        30114    30126      +12     
- Partials       8295     8301       +6     

Impacted Files	Coverage Δ	Complexity Δ
...fish/grammar/cisco/CiscoControlPlaneExtractor.java	66.21% <57.14%> (-0.05%)	1249.00 <2.00> (ø)
...rg/batfish/identifiers/StorageBasedIdResolver.java	85.29% <0.00%> (-5.89%)	22.00% <0.00%> (ø%)
...batfish/representation/aws/LoadBalancerTarget.java	54.16% <0.00%> (-4.17%)	8.00% <0.00%> (-1.00%)
.../org/batfish/dataplane/rib/RouteAdvertisement.java	83.67% <0.00%> (-4.09%)	18.00% <0.00%> (-1.00%)
...java/org/batfish/dataplane/ibdp/VirtualRouter.java	90.54% <0.00%> (-0.34%)	208.00% <0.00%> (-1.00%)
...a/org/batfish/representation/aws/LoadBalancer.java	82.18% <0.00%> (-0.32%)	70.00% <0.00%> (-1.00%)
...ain/java/org/batfish/storage/FileBasedStorage.java	86.19% <0.00%> (-0.28%)	249.00% <0.00%> (ø%)
...src/main/java/org/batfish/coordinator/WorkMgr.java	75.91% <0.00%> (-0.16%)	246.00% <0.00%> (-1.00%)

[progwriter]

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