Fix SF Naming issues

[j-griffith]

This patch fixes up naming issues that have been plaguing the SolidFire backend option in NDVP.

In order to fix this we do a number of things, like skipping the use of name prefixes, and just using docker-names (we can still identify telemetry data via volume attributes).

This means we need to do some extra effort with detecting legacy names, as well as transposed '_' to '-' symbols in names, so it requires a bit more effort on the get and list operations.

We also fix things up in terms of writing attributes to clones, and we start removing the reliance on the file-system mount points as the source of truth for volume existence for SolidFire by moving that into a listForAccount API call.

Note that if you share your docker account ID for other things, then you're doing it wrong, stop doing that. :)

This is a temporary quick fix solution, future changes will be proposed that break these pieces out a bit and simplify the config as well as the operations. This is the first step in that direction, eventually we'll ease testing and maintenance by starting this sort of effort.

Addresses Github issues:

57

#55 
#54 
#41 (partial)

[adkerr]

This has been committed through our internal system as e7e2db5