message: Parse .rnw (& co) files for intellisense
diff: @@ -625,7 +625,7 @@ export class Manager {
  private onWatchingNewFile(file: string) {
  this.extension.logger.addLogMessage(`Adding ${file} to file watcher.`)
  - if (['.tex', '.bib'].includes(path.extname(file)) &&
  + if (['.tex', '.bib', '.rnw', '.Rnw', '.rtex', '.Rtex'].includes(path.extname(file)) &&
  !file.includes('expl3-code.tex')) {
  this.updateCompleterOnChange(file)
  }
  @@ -633,7 +633,7 @@ export class Manager {
  private onWatchedFileChanged(file: string) {
  // It is possible for either tex or non-tex files in the watcher.
  - if (['.tex', '.bib'].includes(path.extname(file)) &&
  + if (['.tex', '.bib', '.rnw', '.Rnw', '.rtex', '.Rtex'].includes(path.extname(file)) &&
  !file.includes('expl3-code.tex')) {
  this.parseFileAndSubs(file, true)
  this.updateCompleterOnChange(file)
  