Keep esc-pos-encoder version alive until TS support is added

[ederwii]

Some existing projects are using the esc-pos-encoder version because of the typescript version. The deprecation of that library would impact in some static code analyzers/vulnerabilities checks due to the lib status.

The request here is to keep the old version alive until you add TS support to this library.

[NielsLeenheer]

I'm more than happy to accept pull requests adding Typescript support.

[cervantes-x]

If I have some extra time on my hands this week, I'll create a PR for this.

[lajith111]

@cervantes-x Any update on this?Thanks