RestClient.buildOptions doesn't support session with AUTH_TYPE_NONE

[t1m0thyj]

Describe the bug

Since CLI v7.24.1, issuing a request thru the Imperative REST client with type = "none" fails with an error:
ImperativeError: No credentials for a BASIC or TOKEN type of session.

Expected and actual results

Credentials should not be required when the session type is AUTH_TYPE_NONE, and the following code should work:

const { RestClient, Session } = require("@zowe/imperative");
const mySession = new Session({
    hostname: "example.com",
    port: 443,
    type: "none"
});
const restClient = new RestClient(mySession);
console.log(restClient.buildOptions("/api/v1", "GET"));

Describe your environment

Additional context

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