poco 1.6.1
poco 1.6.1

poco: 1.6.1, use CMake, allow universal build

This patch bumps version to 1.6.1 and switches build system to CMake. The
latter also allows to build fat binaries and thus close pull request #35839.

Closes #44148.

Signed-off-by: Dominyk Tiller <53e438f55903875d07efdd98a8aaf887e7208dd3@gmail.com>

kwilczynski/homebrew,kwilczynski/homebrew,kwilczynski/homebrew,kwilczynski/homebrew