Imported ocaml-findlib.

Imported ocaml-findlib.

The "findlib" software provides a scheme to manage reusable software
components  in the form of libraries, and includes tools that support
this scheme. A  library installed as a findlib component is also called
a package. The point is  that the findlib scheme allows it to store
metainformation about the library,  especially how it can be used in
programs. The packages are kept in the  filesystem hierarchy, but the
directory structure is defined by findlib, and  there is no way to
deviate from this standard. The library contains functions  to look the
directory up that stores a package, to query metainformation about  a
package, and to retrieve dependency information about multiple packages.
There is also a tool that allows the user to enter queries on the
command-line.  In order to simplify compilation and linkage, there are
new frontends of the  various OCaml compilers that can directly deal
with packages.