public Path getApplicationLayersCache() {
    return projectCache.resolve(APPLICATION_LAYER_CACHE_DIR);
  }
Create a caches helper for cli cache locations.

@param commonCliOptions cli options for user configured cache directories
@param contextRoot the context root, use the parent directory of single files, this context
    root must exist
@return an instance of CacheDirectories with cli specific cache locations
jib-cli/src/main/java/com/google/cloud/tools/jib/cli/CacheDirectories.java