RHash v1.2.6

• allowed options to be intermixed with file names in arbitrary order
• switched option -G and the '%G' printf pattern to print GOST hash
• Bugfix: --output failed for cyrillic file name
• librhash: better shared library compilation/testing support
• librhash: exported benchmarking functions in the shared library
• librhash: added prefix to all functions to avoid poluting linker namespace
• librhash: fixed rare alignment bugs in rhash_print and EDON-R 512
• librhash: loading openssl at runtime if it is present
• Bugfix: LLVM GOST amd64 asm compilation error