Helpers + Streamlit refactor

[palp]

Updates to api/helper functions:

• Adds Txt2NoisyDiscretizationWrapper to helpers and creates a function to apply discretization wrappers conditionally.
• Align defaults with streamlit demo
• Updates SamplingPipeline constructor to allow passing a custom model_spec, and improve default paths behavior
• Support "Low VRAM Mode" via a wrapper class that moves models as needed automatically
• Redo deduplication work from Add inference helpers & tests #57
• Streamlit refactor #105 to finish the deduplication between inference and streamlit code. Prior to refactoring I confirmed 1:1 reproduction between the two in this branch.
• Bump version to 0.1.1

[palp]

I've tested streamlit and all seems to be working well there still.

[ct-777]

The PR contains many formatting. Is it completely done by pylint? If not, can you show your VSCode Python format setting (setting.json) and add to the repo? I hope people can follow the same style.

[palp]

Re-tested streamlit and made some fixes, I've also reverted to a device parameter in SamplingPipeline that can create a DeviceModelManager for you, to simplify basic use cases.

[akx]

Honestly, this .map abomination should just be

Suggested change

	c[k], uc[k] = map(
	lambda y: y[k][: math.prod(num_samples)].to(device), (c, uc)
	lambda y: y[k][: math.prod(num_samples)].to(
	device_manager.device
	),
	(c, uc),
	)
	c[k] = c[k][: math.prod(num_samples)].to(device_manager.device)
	uc[k] = uc[k][: math.prod(num_samples)].to(device_manager.device)

(and as discussed (and implemented) before, num_samples being a list one needs to math.prod on doesn't make any sense, but that's probably beyond the scope of this PR.)

[akx]

Suggested change

	c[k], uc[k] = map(
	lambda y: y[k][:num_samples].to(device_manager.device), (c, uc)
	)
	c[k] = c[k][:num_samples].to(device_manager.device)
	uc[k] = uc[k][:num_samples].to(device_manager.device)

(funny how num_samples is an int here 😁)

[akx]

Would be nice to get this squashed in so I could again rebase my PRs ;-)

[akx]

This'll probably need more fixing with the myriad of demo changes in 059d8e9 😞