feat(core): add context to extension builder

[d3m1d0v]

The key-value storage context has been added to the ExtensionBuilder, which allows you to transfer data between extensions.

Usage:

const builder = new ExtensionBuilder(
  ExtensionBuilder.createContext()
    .set('globalflag', true)
);

const Extension0: ExtensionAuto = (builder) => {
  builder.context.set('someflag', true);
  // ...
};

const Extension1: ExtensionAuto = (builder) => {
  if (builder.context.get('globalflag') === true) {
    // ...
  }
  if (builder.context.get('someflag') === true) {
    // ...
  }
};

builder.use(Extension0).use(Extension1);

[yc-ui-bot]

Preview is ready.