feat: add new decorator-less config pattern

[mvantellingen]

Add a simplified config method in order to make it work without decorators. With support for running typescript directly from node having a proper decorator less approach makes sense.

Example usage:

import { BaseConfig, EnviConfig, envfield } from "@labdigital/enviconf"

class SampleConfig extends BaseConfig {
  /** The port number to listen on */
  readonly HTTP_PORT: number = 4000

  config(): EnviConfig {
    return {
      HTTP_PORT: envfield.number(/* options here */)
    }
  }
}
const config = SampleConfig.load()

[changeset-bot]

🦋 Changeset detected

Latest commit: b78e949

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@labdigital/enviconf	Minor

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR