F5 BIG-IP IMISH OSPFv2 parsing

[arifogel]

No description provided.

[batfish-bot]

This change is 

[dhalperi]

Reviewed 14 of 14 files at r1.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @progwriter)

[codecov]

Codecov Report

Merging #4812 into master will decrease coverage by <.01%.
The diff coverage is 87.5%.

@@             Coverage Diff              @@
##             master    #4812      +/-   ##
============================================
- Coverage     75.47%   75.47%   -0.01%     
+ Complexity    28645    28643       -2     
============================================
  Files          2283     2283              
  Lines        112552   112560       +8     
  Branches      13518    13519       +1     
============================================
- Hits          84954    84951       -3     
- Misses        21108    21113       +5     
- Partials       6490     6496       +6

Impacted Files	Coverage Δ	Complexity Δ
..._bigip_imish/F5BigipImishConfigurationBuilder.java	90.94% <100%> (+0.2%)	70 <3> (+3)	⬆️
...f5_bigip_imish/parsing/F5BigipImishBaseParser.java	62.5% <50%> (-4.17%)	4 <1> (+1)
...org/batfish/datamodel/flow/BidirectionalTrace.java	79.54% <0%> (-2.28%)	13% <0%> (-1%)
...ava/org/batfish/datamodel/bgp/Layer2VniConfig.java	80% <0%> (-2%)	13% <0%> (-1%)
...col/src/main/java/org/batfish/role/InferRoles.java	90.9% <0%> (-1.52%)	65% <0%> (-2%)
...rg/batfish/dataplane/ibdp/EigrpRoutingProcess.java	93.12% <0%> (-0.39%)	69% <0%> (-1%)
...tfish/representation/cisco/CiscoConfiguration.java	78.67% <0%> (-0.12%)	517% <0%> (-1%)