MLBEDSW-10937: Make connection-copies copy all attributes

-Changes the CopyInput() and CopyOuput() functions so that they
also copy rounding and reverse attributes.

-Solves a bug in UnrollKernelStrides() where rounding was not properly
copied.

Change-Id: I35eed49413b6c5aaa66969cb8230b9a1966a595c
Signed-off-by: William Isaksson <william.isaksson@arm.com>