[C++] Parse Git tag/url as a separate elements, i.e. use `--aeron-git-url my-url` instead of `--aeron-git-url=my-url`
[C++] Parse Git tag/url as a separate elements, i.e. use `--aeron-git-url my-url` instead of `--aeron-git-url=my-url`

real-logic/benchmarks,real-logic/benchmarks,real-logic/benchmarks