new_http_archive seems like a convenient way to bring in prebuilt binary releases from non-Bazel projects (e.g., from a GitHub project's Releases archive), but .tgz seems to a common choice for Linux/OSX releases (e.g., https://github.com/halide/Halide/releases, which uses .tgz for Linux and OSX, and .zip only for Windows). Any chance we could get formats other than .zip supported as well?