add netutils
fix charmconf.yaml generation

Signed-off-by: Adam Stokes <adam.stokes@ubuntu.com>
fix path to .cloud-install, move charmconf generation back earlier in
the processing

Signed-off-by: Adam Stokes <adam.stokes@ubuntu.com>
Update config class to pull from a root share path

Add random password generator in utils

Signed-off-by: Adam Stokes <adam.stokes@ubuntu.com>
fix install

Signed-off-by: Adam Stokes <adam.stokes@ubuntu.com>