Install Software Acceleration Features of openssl

Support installing accelerated openssl when testing openssl speed on Ubuntu 20.04.

https://software.intel.com/content/www/us/en/develop/articles/building-software-acceleration-features-in-the-intel-qat-engine-for-openssl.html

In the openssl.py file, https://github.com/GoogleCloudPlatform/PerfKitBenchmarker/blob/master/perfkitbenchmarker/linux_packages/openssl.py

Add a new installation mode which supports installation of Software Acceleration Features according to https://www.intel.com/content/www/us/en/developer/articles/guide/building-software-acceleration-features-in-the-intel-qat-engine-for-openssl.html
Use distribution provided OpenSSL