Add regression tests for the arguments handling in
cmake_parse_arguments. The tests were run also against cmake 3.4.1
maint branch to verify that there are no regressions.
Signed-off-by: Dimitar Yordanov <dimitar.yordanov@sap.com>
Signed-off-by: Matthias Maennich <matthias.maennich@sap.com>
Implement a native `cmake_parse_arguments` command that is fully
compatible with the documented behaviour of the previous implementation.
Leave the CMakeParseArguments module empty but existing for
compatibility.