`NTTable`'s `ServerOperation.value()` gives a list rather than a `p4p.Value`

[evvaaaa]

Would be good if this produced a p4p.Value instead...

Originally posted by @evalott100 in DiamondLightSource/fastcs#119 (comment)

[KaiAsaoka]

I was facing a similar issue where I was trying to initialise an NTTable with additional metadata (see PR #185). Running pv.current().raw.get(...) on an NTTable PV throws an AttributeError in the current implementation as pv.current() returns a list, unlike NTScalar. Would you be able to test to see if this PR fixes this for you?

[evvaaaa]

I was facing a similar issue where I was trying to initialise an NTTable with additional metadata (see PR #185). Running pv.current().raw.get(...) on an NTTable PV throws an AttributeError in the current implementation as pv.current() returns a list, unlike NTScalar. Would you be able to test to see if this PR fixes this for you?

Linking this to @shihab-dls since I'm no longer working on this project.