Provide man pages

Summary:
Man pages are provided in mdoc format.

The makefile procedure is refactored to install
as two different targets executables and man pages.

This change is released as v0.0.2.

Test Plan:

• man <name of the page> (under FreeBSD and Linux)
• make install
• make deinstall
• make install-bin
• make deinstall-bin
• make install-man
• make deinstall-man

Reviewers: dereckson

Reviewed By: dereckson

Differential Revision: https://devcentral.nasqueron.org/D1039