exclude the transport type from puppet module generate

[jessereynolds]

This is a hacky workaround to exclude the transport type from puppet module generate to allow it to set the metaparameter even when environment isolation is enabled via means of the .resource_types type metadata directory.

The effect of which is that you should be able to use the vcenter module on modern Puppet infrastructures with environment isolation enabled as normal.

Note that this will still prevent the transport type from being isolated per environment.

Before this change it is impossible to use the transport type in a modern Puppet agent/master setup.

Nb: A wee bird (that wishes to remain anonymous) whispered this code in my ear. I can take no credit (or responsibility).

[jessereynolds]

Provides a possible workaround for:

• Transport resource not being found vmware-vcenter#219
• Incompatible with Puppet Master vmware-vcenter#222