Updates CMAKE_SOURCE_DIR to CMAKE_CURRENT_SOURCE_DIR to allow for easier inclusion in other repos
Updates CMAKE_SOURCE_DIR to CMAKE_CURRENT_SOURCE_DIR to allow for easier inclusion in other repos

adalke/rdkit,jandom/rdkit,rdkit/rdkit,rvianello/rdkit,bp-kelley/rdkit,jandom/rdkit,ptosco/rdkit,rvianello/rdkit,jandom/rdkit,rvianello/rdkit,rdkit/rdkit,jandom/rdkit,greglandrum/rdkit,adalke/rdkit,rdkit/rdkit,adalke/rdkit,ptosco/rdkit,adalke/rdkit,greglandrum/rdkit,rvianello/rdkit,rvianello/rdkit,greglandrum/rdkit,rdkit/rdkit,bp-kelley/rdkit,greglandrum/rdkit,bp-kelley/rdkit,bp-kelley/rdkit,ptosco/rdkit,adalke/rdkit,greglandrum/rdkit,bp-kelley/rdkit,jandom/rdkit,jandom/rdkit,bp-kelley/rdkit,ptosco/rdkit,greglandrum/rdkit,bp-kelley/rdkit,rvianello/rdkit,rdkit/rdkit,ptosco/rdkit,jandom/rdkit,rvianello/rdkit,ptosco/rdkit,adalke/rdkit,rdkit/rdkit,jandom/rdkit,rdkit/rdkit,adalke/rdkit,greglandrum/rdkit,adalke/rdkit,rdkit/rdkit,greglandrum/rdkit,ptosco/rdkit,ptosco/rdkit,bp-kelley/rdkit,rvianello/rdkit