Comments to Makefile.
Added classic sizeof utility.

git-svn-id: svn://graphite/diminuto/trunk@534 5dfbf39a-1452-0410-8a97-9e58fedde8e3
Added function_t.

git-svn-id: svn://graphite/diminuto/trunk@535 5dfbf39a-1452-0410-8a97-9e58fedde8e3
Moved make configs into separate cfg directory.
Added more types to sizeof program.

git-svn-id: svn://graphite/diminuto/trunk@536 5dfbf39a-1452-0410-8a97-9e58fedde8e3