Update pgeasy.

src/interfaces/libpgeasy/Makefile.in

src/interfaces/libpgeasy/examples/pginsert.c

src/interfaces/libpgeasy/examples/pgnulltest.c

src/interfaces/libpgeasy/examples/pgwordcount.c

src/interfaces/libpgeasy/halt.c

src/interfaces/libpgeasy/halt.h

src/interfaces/libpgeasy/pgeasy.3

src/interfaces/libpgeasy/pgeasy.c

src/interfaces/libpgeasy/pgeasy.h