It's probably not very realistic to expect power users to be happy with
the default quotas (10 networks, 50 ports, 10 subnets). I believe that
larger defaults would be more realistic. This patch bumps existing
quotas for the aforementioned neutron resources x10 times.
DocImpact change default quotas in documentation if used in examples
anywhere.
UpgradeImpact operators may need to revisit quotas they use.
Closes-Bug: #1674787
Change-Id: I04993934627d2d663a1bfccd7467ac4fbfbf1434