Arista: route-map set distance

[dhalperi]

1. start leaving a path to convert route-map to Arista format
2. implement route-map set distance

[batfish-bot]

This change is 

[dhalperi]

Reviewed 1 of 1 files at r1.
Reviewable status: 0 of 5 files reviewed, all discussions resolved (waiting on @dhalperi)

[codecov]

Codecov Report

Merging #6126 into master will decrease coverage by 0.00%.
The diff coverage is 90.00%.

@@             Coverage Diff              @@
##             master    #6126      +/-   ##
============================================
- Coverage     72.72%   72.71%   -0.01%     
+ Complexity    34665    34663       -2     
============================================
  Files          2815     2816       +1     
  Lines        141408   141418      +10     
  Branches      16977    16977              
============================================
- Hits         102833   102832       -1     
- Misses        30414    30422       +8     
- Partials       8161     8164       +3     

Impacted Files	Coverage Δ	Complexity Δ
...representation/arista/RouteMapSetDistanceLine.java	83.33% <83.33%> (ø)	2.00 <2.00> (?)
...sh/grammar/arista/AristaControlPlaneExtractor.java	33.38% <100.00%> (+0.05%)	586.00 <1.00> (+1.00)
...ain/java/org/batfish/storage/FileBasedStorage.java	86.29% <0.00%> (-0.40%)	257.00% <0.00%> (ø%)
...rg/batfish/dataplane/ibdp/EigrpRoutingProcess.java	92.72% <0.00%> (-0.39%)	68.00% <0.00%> (-1.00%)
...a/org/batfish/representation/aws/LoadBalancer.java	82.18% <0.00%> (-0.32%)	70.00% <0.00%> (-1.00%)
...tfish/representation/cisco/CiscoConfiguration.java	85.81% <0.00%> (-0.14%)	492.00% <0.00%> (-1.00%)
...src/main/java/org/batfish/coordinator/WorkMgr.java	77.41% <0.00%> (-0.14%)	284.00% <0.00%> (-1.00%)

[progwriter]

Reviewed 5 of 5 files at r2, 1 of 1 files at r3.
Reviewable status: complete! all files reviewed, all discussions resolved