feat: support advanced wallet query

[TimoGlastra]

Adds support for some of the most important wallet query features as defined by the indy-sdk (and aries-askar). https://hyperledger-indy.readthedocs.io/projects/sdk/en/latest/docs/design/011-wallet-query-language/README.html

Currently only added support for $and, $or and $not, which is enough for most use cases. We need this in particular for querying credentials based on a DIF presentation definition.

Fixes #739

@blu3beri I just used the default syntax for this, so you'd use it like this:

const query: Query<TheRecord> = {
  $and: [
	{ $or: [{ expandedTypes: 'https://url1.com' }, { context: 'https://url1.com' }] },
	{ $or: [{ expandedTypes: 'https://url2.com' }, { context: 'https://url2.com' }] },
  ]
}

We can look at a builder, but not sure what that would look like exactly?

@NB-PrasadKatkar this should unblock you for the presentation exchange work

[karimStekelenburg]

LGMT. However, may I ask why we're not implementing all operators in one go? Are the others more work or something?

I can see these cover most use cases, but I can also think of some use cases where $gt and $lt are useful for example.

[TimoGlastra]

The $gt and $lt only work on unencrypted tags in indy and askar, but we only support encrypted tags in afj. Would like to keep it minimal so it's easier for new storage methods to implement, especially if we aren't using some features

[berendsliedrecht]

Why is inMemory storage not supported for querying?

[TimoGlastra]

In memory is currently only exposed in tests (not part of core because it was a really quick implementation without tests itself). Adding this to in memory storage would require more work, and I mostly wanted to unblock prasad in his work