QUANTRampAPI2.py v quant_api.py

[Sparrow0hawk]

I'm nit picking through things on documentation and have noticed we have both QUANTRampAPI2.py and quant_api.py.

They both lack tests but also seem broadly to do similar things with quant_api.py simply being a more standard python module.

@nickmalleson are we able to tidy this up and remove QUANTRampAPI2.py from microsim module?

[ciupava]

I don't think that QuantRampAPI2 is actually used.

[nickmalleson]

Indeed, QuantRampAPI2 is a hangover from some old code that Natalie was writing. I have deleted it as part of issue #267 (in commit d769ee1) . We should write tests for quant_api.py, this is the subject of #262