Revisit the source.New* set of functions

[kzantow]

The number of source.New* functions are getting a bit unwieldy. We should revisit this and pair the functions down to the necessary signatures, probably removing a number of them and maybe introducing a configuration object instead of permutations with different arguments.

[mcbenjemaa]

This is a Breacking change and its not clear how to migrate.
I have been using
input, err := source.ParseInput(fmt.Sprintf("registry:%s", img.ID), "")

Now how to change that?

[kzantow]

@mcbenjemaa I'm not sure what the source.ParseInput call was doing -- I checked out commit 928511e, which is the one prior to the recent source refactoring and I can't find a source.ParseInput function. Before the calls were generally:

detection, err = source.Detect(...)
soure, err := detection.NewSource(...)

Now you just need to call syft.GetSource, similar to this example: https://github.com/anchore/syft/pull/2691/files#diff-ca91d24ca0dbc33485279b92a42b44ab2e2565fe87e04fb77c50ac78c1c37bc0R15

src, err := syft.GetSource(context.Background(), image, syft.DefaultGetSourceConfig().WithSources("registry"))