concurrencpp: add missing includes, drop old versions and support clang#28285

jcar87 merged 3 commits intoconan-io:masterconan-io/conan-center-index:masterfrom

perseoGI:pgi/concurrencpp/fix-windowsperseoGI/conan-center-index:pgi/concurrencpp/fix-windowsCopy head branch name to clipboard