Added pinq_invis_filter(), something strange when excl filter is empty.
Added archive viewer and dump of all structures in examples.
Added some inquiry functions
Added pinq_cur_elem_type_size() and pinq_cur_elem_content()
Added reading for some more element types and fixed bug for PELEM_EXEC_STRUCT.
Added pinq_el_type_size() and added some element types to pinq_elem_content().
Added pinq_elem_content() and working for one type of element.
Fixed missing include when compiling for OSX
endian.h did not exist on all machines.
Automatic determination of endianess
