[feature request] Get set sample envelopes

[d.healey]

@Christoph-Hart I thought I'd already asked for this somewhere but can't find it.

Just like we can use Sampler.Pitch, I'd like to be able to Sampler.PitchTable and Sampler.GainTable, etc.

I tried adding this myself with things like sampleIds.add(SampleIds::PitchTable);

However this doesn't quite work. If the table has a string in the sample map like PitchTable="72......nr3L7C...vOb+lr83BTL7C...vO9JoD9.R9y6C...vOQE4Q9j3KS7C...vOiMhf93TR.7C...vO...f+3TR.7C...vO"

Then when I try to access it with Sampler.PitchTable I'll just get the 72. So I think there is some base64 magic that needs to be handled.

[Christoph Hart]

@d-healey unfortunately that‘s very complicated to implement - usually the HISE modules have the ownership of the tables but here it‘s a sample object so the existing table API won‘t work.

[d.healey]

@Christoph-Hart Manually copy paste in the XML it is then :)