[C++]: add --no-parallel option to allow single CPU builds optionally.
[C++]: add --no-parallel option to allow single CPU builds optionally.

galderz/Aeron,mikeb01/Aeron,mikeb01/Aeron,real-logic/Aeron,mikeb01/Aeron,galderz/Aeron,EvilMcJerkface/Aeron,EvilMcJerkface/Aeron,real-logic/Aeron,real-logic/Aeron,real-logic/Aeron,mikeb01/Aeron,galderz/Aeron,EvilMcJerkface/Aeron,galderz/Aeron,EvilMcJerkface/Aeron