timefind initial commit
change endianness of params to resemble crontab

Previously, things were big-endian: Month came the first, minute came
the last. Now things are little-endian: minute-first, month-last (and
day of week is always appended at the end, regardless.)
license notice with MPL & removal of Before/Between

Why MPL? I just want this library to be used as widely as possible and
improved as much as possible.

Maximum limit for time makes things unnecessarily complicated, and it
can be easily implemented, so I dropped the interface.
README for go-timefind