Adds an initial test for reproducible builds to the OE selftest. This
initial test builds core-image-minimal using sstate, then does a clean
build without sstate in another build directory, and finally does a
binary comparison of the resulting package files between the two builds.
The test is currently always skipped since it doesn't pass yet, but it
can easily be enabled locally
Signed-off-by: Joshua Watt <JPEWHacker@gmail.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
