message: Core: Make stylable projectRoot public
diff: @@ -54,7 +54,7 @@ export class Stylable {
  public resolver: StylableResolver;
  public resolvePath: (ctx: string | undefined, path: string) => string;
  constructor(
  - protected projectRoot: string,
  + public projectRoot: string,
  protected fileSystem: MinimalFS,
  protected requireModule: (path: string) => any,
  public delimiter: string = '--',
  