libcorrect: add package

libcorrect: add package

Adds the libcorrect package. Libcorrect by default builds a shared
library, so require shared libraries. We add a patch to make sure
-Wpedantic is only used if supported by the C compiler (gcc < 4.8
didn't support it).

Signed-off-by: Joel Carlson <JoelsonCarl@gmail.com>
[Thomas: add a patch to use -Wpedantic only if available, instead of
depending on gcc >= 4.8.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>