Log Message:
Initial import of createbuildlink-1.0, a simple script that helps creating
a buildlink.mk from a package's Makefile and PLIST.

XXX: this is an attempt to make the creation of buildlink.mk files more
XXX: systematic and less error-prone than copying existing buildlink.mk
XXX: files and modifying them for a new package.  Any help in making this
XXX: script less simplistic and more versatile is gladly welcome!