Parse ELF symbol version files

It could be useful to parse specific file formats such as "version.lds" files and other files to collect ELF versioning information.

For instance, some project such as libfdt use version.lds, while OpenSSL uses .num files (in https://github.com/openssl/openssl/blob/master/util/libssl.num ) and tensorflow uses the .lds extensions but with a different name pattern.