Dynamic ASG Support

[geofffranks]

Adds the policy-server-asg-syncer job to poll CAPI for ASG information. Exposes an internal endpoint for the vxlan-policy-agent to consume ASG info for desired spaces.

Relevant links:

https://docs.google.com/document/d/1l_YVrdkNKCwmJbbKF1UhUOUACJ8rmOdTaybb0Taj0Bc/edit# https://www.pivotaltracker.com/story/show/180377717 https://www.pivotaltracker.com/story/show/181080369 https://www.pivotaltracker.com/story/show/180494405

[linux-foundation-easycla[bot]]

The committers are authorized under a signed CLA.

• :white_check_mark: Geoff Franks (c6b7a716e2a6c352a064b4e9ae87bb4aad7d7382, eb1af1d0b1c85dc366d42f45c0b027b10c6ada54, d493a70853f70a857614a03023d361ab710240e1, 12910fcbf65c1691e8a478f80a41cf69e47f3d6d, e5705cac244e6bb032b0b5df2fa242776766eac4, ebc3ca992e2fe0075d613f4881d3a02cdef69197, 15bdbe00acf3ecc5a5db2531894ac5313339358f, bfe29d12269d53e83caddc7f4f00af6ba00a78a4, 95c5515ab78250039047caaf146ae7eaf51e2072, d8002c8430fff8018ac1f13b0516d02e5d46dad3)
• :white_check_mark: Josh Russett (20724b72763cb7310367e75fa18ddf901d0c7e22, ee4b13242695c49758e75669f7dc30ead017d1cf)
• :white_check_mark: Marc Paquette (16b7f25f888daccae6753f82a4a19ae97c3efd99, 4fe5e4aa2cdd361f378bdf9ca80763983ba1006b, 71eda2341794fc43ff3a0d97676488f7166f626e, eeb48044a738c3f98fe724bbcaa47369c4a9504b)
• :white_check_mark: Maria Shaldybin (8a9166890eb3b0d3a86113ccd03c409ed8aea545, c8fdc1a7c6ef86b164ecf82740e62beb4073a4a5, 8f263fa7a9275f984682e6d2e2d903f68910558f, ca29d8aa8c095c7f414e3be9ae915d1b0e2229c7, be7963e606a2145d2a64bce7881d82285d77bd0a, d1e7d52c972d60fc85bf18a1dd181c2721967dbc, ae046ffa121aa98697db3797ce384d49fa4d3902, 3e595d7d83e7e18be096ff15db65a8f362f4aee1, 1dff2b16ba08e42a61f565d1c6c3c1107ae17849, 8d89cd4c13ba3f9f940c42b5ee5eacfb9c75c990, f37e11d60558809e2acfd731a7cabd08cf3c2674, 603c7513e6fddd2fdfb7673b9f17ca23c9312825, 74c9627ab16017815be6f3cdc42b443d94ae28d8, 976e308f8ec4335c0172b0d4483a424aac4170df, f7c8e8fa9d6a8ad0b254d1370eb26872f7268380, 7a1abca238505eca6d3ff1d5da6f57c691e064aa, ee32df74d793a7f45556e0e17e6824ce49ae57e2, c5345dcc2d191ce783ffb602f804eaa8bf120297)
• :white_check_mark: Renee Chu (e68bdd6822bd38f3a8cc8daedd9ed216a57f0b90, 553a1d2fdc5c9bc67f763b2b4a6428e090394255, 3a157435af3fb2f260f33eec956fa04fae51e7d9, 5bfd62d74cbe19875e320ec84a82e4ffcfd2951e, 1cccbe31b5b927f0b51a5321e224f81ad8b2aee1, 2021f10ff8f8b708bf5316d7bd09151a456cf1e3, c4a639350190540ceb64401db888618421f0ef14, 821fcf1aeafd1319742e8e327458a25392279b11, d37dc91645e1af144aef26e8e9fc2fa65c4b04e0, 7420c9da8cb80945e5b86b7a9f3bf4dd1ff9580a, 0be9925185c28adfc0303212c62a78b3f148afd6)
• :white_check_mark: Chris Selzo (9b75682de479f1510c01b7e15632b0a4ee6da478)