This adds `nfpm.libdirs` to allow to set where to put libraries built,
as well as include them in the search for artifacts when building the
package.
closes#4346
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PS: I'm not sure about the default dirs, let me know what you think!
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Signed-off-by: Carlos Alexandro Becker <caarlos0@users.noreply.github.com>
765d534c2e