Background
 When -DWITH_ZLIB=system / -DWITH_LZ4=system is used
 zlib_decompress/lz4_decompress are not built. The tools "openssl zlib" /
 "lz4" are then required for test to pass.

 The test did not check if lz4 executable was available and also assumed
 the zlib subcommand of the openssl executable was always present.

 On Debian and Ubuntu the openssl command is known to lack this
 feature.

Fix
 Introduce helper linux_distro.inc which uses /etc/os-release to find
 current Linux distribution.

 Add not_debian.inc/not_ubuntu.inc which use linux_distro.inc and will
 skip the test if current platform is Debian or Ubuntu.

 Modify the test case by splitting test in 3 parts, without
 compression and with zlib or lz4 compression. The test case without
 compression will always run. The lz4 case is modified to chech
 availability of "lz4" executable and fail early if not found. In the
 zlib case, a check is added for the "zlib" feature of the "openssl"
 command. If not available the test fails immediately, however on
 Ubuntu and Debian, where the "openssl" command is known to be shipped
 without "zlib" support, the test is skipped.