PAN BGP: initial peer conversion

[dhalperi]

No description provided.

[batfish-bot]

This change is 

[progwriter]

Reviewed 8 of 8 files at r1.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @sfraint)

[codecov]

Codecov Report

Merging #4884 into master will decrease coverage by 0.01%.
The diff coverage is 50.72%.

@@             Coverage Diff              @@
##             master    #4884      +/-   ##
============================================
- Coverage      76.2%   76.18%   -0.02%     
- Complexity    29014    29018       +4     
============================================
  Files          2302     2302              
  Lines        112532   112593      +61     
  Branches      13451    13461      +10     
============================================
+ Hits          85757    85781      +24     
- Misses        20215    20243      +28     
- Partials       6560     6569       +9

Impacted Files	Coverage Δ	Complexity Δ
...batfish/representation/palo_alto/BgpPeerGroup.java	77.77% <100%> (+2.77%)	8 <3> (+1)	⬆️
.../org/batfish/representation/palo_alto/BgpPeer.java	100% <100%> (ø)	14 <2> (+1)	⬆️
...va/org/batfish/representation/palo_alto/BgpVr.java	100% <100%> (ø)	14 <1> (ø)	⬇️
...rammar/palo_alto/PaloAltoConfigurationBuilder.java	82.78% <100%> (ø)	267 <0> (ø)	⬇️
...epresentation/palo_alto/PaloAltoConfiguration.java	86.04% <42.37%> (-4.09%)	189 <4> (+4)
...ain/java/org/batfish/symbolic/IngressLocation.java	65.78% <0%> (-2.64%)	15% <0%> (-1%)
...tfish/representation/cisco/CiscoConfiguration.java	83.99% <0%> (-0.13%)	506% <0%> (-1%)
...rg/batfish/dataplane/ibdp/EigrpRoutingProcess.java	93.51% <0%> (+0.38%)	70% <0%> (+1%)	⬆️