Move ChipperUtils.isRepoTypeScript to perennial/isRepoTypeScript, see https://github.com/phetsims/chipper/issues/1081
Move ChipperUtils.isRepoTypeScript to perennial/isRepoTypeScript, see https://github.com/phetsims/chipper/issues/1081

phetsims/perennial,phetsims/perennial,phetsims/perennial