Add signature providers

Requires: common-ci-configuration!75 (merged)

examples/ts/signature-extension/src/signature-providers/beekeeper/index.ts

-import createBeekeeper from "@hiveio/beekeeper";
-
-import { privateKey } from "../../../common-data.js";
-
-export const createProvider = (async (_accountName: string) => {
-  const bk = await createBeekeeper({ enableLogs: false });
-  const session = bk.createSession("salt");
-
-  const { wallet } = await session.createWallet("w0", "password", true);
-
-  await wallet.importKey(privateKey);
-
-  return wallet;
-}) ;