Correct decoding of Binary TCD file time offsets.
(cherry picked from commit aad9b2caa43895c7c864ebcf8a55846fb5bde174)

Conflicts:
	src/TCDS_Binary_Harmonic.cpp
Correct Lookup algorithm for Features with no attributes.
(cherry picked from commit 1507550a8e23d1171eedccc3fb9714374723ab60)

Conflicts:
	src/s52plib.cpp