feat: support for JWT authentication

[PhantomRay]

This adds the support for JWT authentication. It's now as easy as using the following code.

LoginResponse result = await _client.login(LoginType.mLoginJWT, token: accessToken);

In Synpase config file, add the following to allow JWT auth:

jwt_config:
  enabled: true
  secret: "YOUR_SECRET"
  algorithm: "HS256"

For more details, please refer to JWT Login Type

[CLAassistant]

All committers have signed the CLA.

[PhantomRay]

Hi @krille-chan will you be able to review this?

[PhantomRay]

Can you please shed some light on here?

[td-famedly]

Can you please shed some light on here?

https://github.com/famedly/matrix-dart-sdk/tree/main/lib/matrix_api_lite#generated-code has steps to generate api lite code

[PhantomRay]

@huangred can you please generate the code instead of editing the generated file directly?

[PhantomRay]

now using code generation tool.

[PhantomRay]

@td-famedly anything more I should do?

[krille-chan]

@PhantomRay can you squash your commits and give me write access to your branch so I can sign the commit with my key? Then we can merge this

[PhantomRay]

@krille-chan I have squashed the commits into one, and gave you written access to https://github.com/PhantomRay/matrix-dart-sdk

[PhantomRay]

At last! Thanks guys.