UI changes for BGP peering MD5 authentication

[Nischal Sheth]

MD5 authentication for BGP peers is tracked via bug 1383393. This bug
tracks the UI changes needed for the same. An authentication key chain
can be set per bgp-router or in BgpSessionAttributes for a bgp-peering.
The schema changes have been implemented via the following commit:

https://github.com/Juniper/contrail-controller/commit/40d00f9ec3cc2ec2d88adc04d01aec9a0beefc07

The UI should support configuration of authentication data per bgp-router.
This can be done by adding "Advanced Options" section to Create/Edit BGP
Peer screens. User should be able to create/update a key item as per the
schema change above.

The fields for a key item are as follows:

key-id : Identifier for key item (0-63)
key-value: Actual secret

The only supported key-type is MD5 for now.

Additionally, it will be useful if the UI can also support configuration
of a key chain per bgp-peering. Perhaps an "Advanced Options" section
could show up when a "Configured Peer" is selected in the Create/Edit BGP
Peer screen when the Peer Type is not "Control Node" i.e. Peer Type is
"BGP Peer".

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/8906
Submitter: Siva Bavanasi (<email address hidden>)

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/8907
Submitter: Siva Bavanasi (<email address hidden>)

[OpenContrail Admin (ci-admin-f)]

Reviewed: https://review.opencontrail.org/8907
Committed: http://github.org/Juniper/contrail-web-controller/commit/9d5c6b5298e1c742da2e753c97c932abda63de57
Submitter: Zuul
Branch: master

commit 9d5c6b5298e1c742da2e753c97c932abda63de57
Author: Siva Bavanasi <email address hidden>
Date: Wed Mar 25 18:12:53 2015 +0530

Closes-bug: #1420416 - UI changes for BGP peering MD5 authentication

Change-Id: I66ce815af8ffe76e4c7e696ffbd7a5dfb8df19ef

[OpenContrail Admin (ci-admin-f)]

Reviewed: https://review.opencontrail.org/8906
Committed: http://github.org/Juniper/contrail-web-core/commit/00de8f026a102838a07e00949db211fe79d56310
Submitter: Zuul
Branch: master

commit 00de8f026a102838a07e00949db211fe79d56310
Author: Siva Bavanasi <email address hidden>
Date: Mon Apr 6 12:53:05 2015 +0530

Closes-bug: #1420416 - UI changes for BGP peering MD5 authentication

Change-Id: I7f146aa36de2fceb1afb5924792b513108965425