This patch adds microversion 2.49, which supports tagged attachment
of network interfaces and block devices.
Change-Id: I8d3bbe7e9a21d2694d10ee89628deb333e6b0487
Implements: blueprint virt-device-tagged-attach-detach
This is step 4 of the remove v3 process. It moves the v2.1
json-schemas out of v3 directory, and also corrects all the
references.
Change-Id: Ibf88c38df951ed755b7431846cca7496f861c1dd
Partial-Bug: #1462901