Kailun Qin 563a536d02 Support Network Segment Range CRUD as extensions ... This patch adds the support for network segment range CRUD. Subsequent patches will be added to use this network segment range on segment allocation if this extension is loaded. Changes include: - an API extension which exposes the segment range to be administered; - standard attributes with tagging support for the new resource; - a new service plugin "network_segment_range" for the feature enabling/disabling; - a new network segment range DB table model along with operation logic; - Oslo Versioned Objects for network segment range data model; - policy-in-code support for network segment range. Co-authored-by: Allain Legacy <Allain.legacy@windriver.com> Partially-implements: blueprint network-segment-range-management Change-Id: I75814e50b2c9402fe6776229d469745d7a72290b		2019-03-07 08:20:30 +00:00
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notes	Support Network Segment Range CRUD as extensions	2019-03-07 08:20:30 +00:00
source	Update reno for stable/rocky	2018-08-09 21:54:37 +00:00