Enhance DX of plugin authors #92

To improve the DX of plugin author's we should provide a couple of changes to the current data structure.

Adoption of RunnerConfig

• Adoption of RunnerConfig with outputDir derived from PersistConfig #227 => Adoption of RunnerConfig with outputDir derived from PersistConfig #227 (comment)

This will make it easier to work with different cwd and config location settings.
npx ../../dist/packages/cli collect --config=../../packages/cli/test/plugin-progress-bar.config.mock.ts --outputDir=../../tmp

Adoption of RunnerConfig

• Adoption of RunnerConfig with a optional transform function. #228.
  clodes by feat: add transform to persist config #229

If a transform function is provided,
the output of a plugin is piped through the provided transform function after we read the plugin-output.josn.

{
  plugins: [
    {
      outputPath: "out.json",
      transform: (data: Record<string, any>): PluginOutput => {
          return {
            //...
          }
      }
    }
  ]
}

Adoption of runner type

• Introduce new type for runner #230

Would get executed inside the cli and its return value is directly used int the report.

{
  plugins: [
    {
      runner: async (): void => {
         return // audit outputs
      }
    }
  ]
}

Implementation should be in different PRs.