[Feature] Support arbitrary scanner source

[wormtql]

Description

Currently only some sources are supported, new scanners will not be able to import their json.
Actually I'm developing a new scanner (relics only) with the format of HSR, but the source field blocks me from importing.
I can set the source to HSR-Scanner to allow import, but that's a little bit wierd since the scanner is actually not HSR.

[wormtql]

One more thing, is it possible to not provide meta data, since my scanner is relics only.

[fribbels]

Could you link the details of your scanner? I'm happy to support it.

We store details about the scanner here including the github page (so we can link to it) and the latestBuildVersion (so we can notify the user when the scanner is out of date).

hsr-optimizer/src/lib/importer/importConfig.js

Line 4 in 679dc5c

name: 'HSR-Scanner',

Also if you prefer we have a dev channel on the discord server, I'll be able to respond faster there

[wormtql]

Here is my scanner yas-scanner, which is relics only.
The output does not contain a metadata with UID and trailblazer name. So will it be supported to import relics only data?
Some extra info:

export const ReliquaryArchiverConfig = {
  name: 'Yas Scanner',
  author: 'wormtql, YCR160',
  homepage: 'https://github.com/wormtql/yas',
  releases: '', // not released yet
  defaultFileName: 'hsr.json',
  sourceString: 'yas-scanner',
  latestBuildVersion: 'v0.0.0',
  latestOutputVersion: 3,
}