BgpRouteDiff: model changes to origin type

[dhalperi]

No description provided.

[batfish-bot]

This change is 

[dhalperi]

Reviewed 5 of 7 files at r1.
Reviewable status: 5 of 7 files reviewed, all discussions resolved (waiting on @anothermattbrown and @ratulm)

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projects/batfish/BUILD, line 116 at r1 (raw file):

        "//projects/batfish-common-protocol/src/test/java/org/batfish/common/matchers",
        "//projects/batfish-common-protocol/src/test/java/org/batfish/datamodel/matchers",
        "//projects/batfish-common-protocol/src/test/java/org/batfish/datamodel/questions:TestQuestion",

FYI bazel changes are just to enable me to run these tests on their own rather than as part of the entire commons module.

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projects/batfish-common-protocol/src/test/java/org/batfish/datamodel/questions/BgpRouteDiffTest.java, line 91 at r1 (raw file):

hree

FYI three was already four.

[ratulm]

Reviewed 2 of 7 files at r1.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @anothermattbrown)