NX-OS: extract SNMP community information

[dhalperi]

No description provided.

[batfish-bot]

This change is 

[progwriter]

Reviewed 4 of 4 files at r1.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @anothermattbrown)

[codecov]

Codecov Report

Merging #6219 into master will decrease coverage by 0.01%.
The diff coverage is 96.42%.

@@             Coverage Diff              @@
##             master    #6219      +/-   ##
============================================
- Coverage     72.94%   72.93%   -0.02%     
- Complexity    34931    34935       +4     
============================================
  Files          2826     2827       +1     
  Lines        142258   142283      +25     
  Branches      17079    17080       +1     
============================================
+ Hits         103766   103770       +4     
- Misses        30287    30301      +14     
- Partials       8205     8212       +7     

Impacted Files	Coverage Δ	Complexity Δ
...tfish/representation/cisco_nxos/SnmpCommunity.java	92.30% <92.30%> (ø)	7.00 <7.00> (?)
...mar/cisco_nxos/CiscoNxosControlPlaneExtractor.java	76.12% <100.00%> (+0.06%)	1024.00 <4.00> (+4.00)
...resentation/cisco_nxos/CiscoNxosConfiguration.java	88.84% <100.00%> (+0.01%)	351.00 <1.00> (+1.00)
.../org/batfish/minesweeper/bdd/TransferBDDState.java	87.50% <0.00%> (-12.50%)	3.00% <0.00%> (ø%)
...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%)
...src/main/java/org/batfish/coordinator/PoolMgr.java	59.25% <0.00%> (-1.24%)	15.00% <0.00%> (-1.00%)
...ain/java/org/batfish/storage/FileBasedStorage.java	86.36% <0.00%> (-0.91%)	259.00% <0.00%> (ø%)
...src/main/java/org/batfish/coordinator/WorkMgr.java	77.45% <0.00%> (-0.41%)	283.00% <0.00%> (-2.00%)
... and 5 more