schema/mysql: Support NSX OpaqueNetwork object types

[skupjoe]

No description provided.

[skupjoe]

Looks like I might be duping 62077c4 here, whoops.

Either case, I don't think the adjustment made in f442d29 and 62077c4 as added in that PR are required, so I will leave this open.

[esodesod]

No worries. Nice summary on Issue #167 - I also noticed the increased varchar was only needed when connected with ESXi-hosts directly (which have different MoRefs). Did not experience the same problem while connected to vCenter directly - with the very same ESXi-hosts (e.g. on VC 6.7). My vCenter-connection broke after upgrading to VC 7.0 (another story/issue), but I didn't have the time to rollback, just to do drilldown in this issue.

Anyway; agree that this needs to be updated, as NSX is getting bigger footprint in vSphere environments, hence need for this object type.

[Thomas-Gelf]

Thanks @skupjoe for tracking this down and for your pull request! I didn't merge your one, as it contained no DB migration and an unreleated merge conflict. Still, it was very useful!