Fix Eth-Codes bitorder, Tests

Fixed bitorder of 10GbE and Ethernet compliance codes,
Added manipulation of individual bytes in FakeTCV
Removed unused variables form tests

Signed-off-by: Thomas Ruschival <thomas@ruschival.de>
Merge branch 'FixEthernetCompliance' of https://github.com/truschival/libtcv into truschival-FixEthernetCompliance

Conflicts:
	include/libtcv/tcv.h
Merge branch 'truschival-FixEthernetCompliance'