* FreeBSD changes (#718)
* Update build Makefile to be able to build on other platforms
Split Makefiles to isolate every specifics per platform if specific file
is not found, the include will default to linux.
* Isolate linux specific messages emitted by crowdsec command line
On other platforms, we shouldn't write messages with `systemctl`
occurrences. This commit isolate the specific messages and ensure the
messages are relevant for the given platform according result of `GOOS`.
* remove the test
Co-authored-by: Sofian Brabez <sbz@6dev.net>
Co-authored-by: AlteredCoder <AlteredCoder>
