Add first batch of benchmarks for N|Solid

[santigimeno]

In order to have a solid basis on which to base future performance improvements.
Some of these could be as simple as reusing current benchmarks, such as some of the http's but with N|Solid using a specific agent (Zmq or OTLP). Some could be N|Solid specific and we could take advantage of the ZMQ and OTLP test helpers already implemented.