Export all defined interfaces for v2.0.x

[zFernand0]

Right now we only export the ./lib/ZosAccessor.d.ts . However, I believe it will be beneficial if we exported everything inside interfaces in order to avoid extenders/developers importing from a package subdirectory

See the example below

import { SpoolFile } from "zos-node-accessor/lib/interfaces/SpoolFile";
import { Job, JobStatus } from "zos-node-accessor/lib/interfaces/Job";
import { JobListOption } from "zos-node-accessor/lib/interfaces/JobListOption";
import { JobLogOption } from "zos-node-accessor/lib/interfaces/JobIdOption";

More examples can be found in this PR:

• V3 Conformance + zos-node-accessor update zowe/zowe-cli-ftp-plugin#155

[std4lqi]

Hi @zFernand0 , I create PR #101 . Let me know please, if any comments.