[makefile] cleaning makefiles from -custom param for ocaml
[makefile] most of the ocaml tools are compiling with shared lib

some issues with mixed static/shared lib
[makefile] more makefile cleaning and dynamic loading
[makefile] silence clean target and add missing Makefile
[makefile] fix multimon makefile
[makefile] multimon dll path
[makefile] deduplication in mutimon makefile