Add seq table2cmd

[evalott100]

Closes #49

Adds the functionality missing in #50, making the conversion more general.

[codecov]

Codecov Report

Patch coverage: 100.00% and project coverage change: +0.14 🎉

Comparison is base (8729a25) 96.20% compared to head (6a06054) 96.35%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master      #52      +/-   ##
==========================================
+ Coverage   96.20%   96.35%   +0.14%     
==========================================
  Files          11       12       +1     
  Lines        1108     1151      +43     
==========================================
+ Hits         1066     1109      +43     
  Misses         42       42              

Impacted Files	Coverage Δ
pandablocks/utils.py	100.00% <100.00%> (ø)

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[coretl]

Almost there, just a couple of changes need changing in the code originally in the IOC repo

[coretl]

Also, please could you add some entries in the docs for this?

[AlexanderWells-diamond]

Changes look fine except a couple of minor points.

I would like to see more tests written, for anything that isn't the expected case. I had tests for these cases in the PandAblocks-ioc repo so it seems a shame to lose them.

[AlexanderWells-diamond]

Another thought: Is it worth trying to use this in PandABlocks-ioc before merging this? That'll check if the API actually is compatible with that project.

[evalott100]

Another thought: Is it worth trying to use this in PandABlocks-ioc before merging this? That'll check if the API actually is compatible with that project.

I've now adjusted pandablocks-ioc to use the functions here: PandABlocks/PandABlocks-ioc#15. Everything is passing apart from one test which is broken on dev anyway.