glcd-prinl-small and big for lisp
picolisp: Include declarations for lisp_ks0108b_prinl_small and big
picolisp_mod.h: Include declarations for glcd-prinl-small/big
picolisp glcd: discard glcd-write

This is actually replaced by the *better*
glcd-prinl-small and glcd-prinl-big functions.