p5-Math-Prime-Util: update to 0.71.

0.71 2018-08-28

    [ADDED]

    - forfactored { ... } a,b         loop n=a..b setting $_=n, @_=factor(n)
    - forsquarefree { ... } a,b       as forfactored, but only square-free n
    - forsemiprimes { ... } a,b       as forcomposites, but only semiprimes
    - random_factored_integer(n)      random [1..n] w/ array ref of factors
    - semiprime_count([lo],hi)        counts semiprimes in range

    [FIXES]

    - Monolithic sieves beyond 30*2^32 (~ 1.2 * 10^11) overflowed.

    - is_semiprime was wrong for five small values since 0.69.  Fixed.

    [FUNCTIONALITY AND PERFORMANCE]

    - is_primitive_root much faster (doesn't need to calulate totient,
      and faster rejection when n has no primitive root).

    - znprimroot and znorder use Montgomery, 1.2x to 2x faster.

    - slightly faster sieve_range for native size inputs (use factor_one).

    - bin/primes.pl faster for palindromic primes and works for 10^17

    [OTHER]

    - Added ability to use -DBENCH_SEG for benchmarking sieves using
      prime_count and ntheory::_segment_pi without table optimizations.

    - Reorg of main factor loop.  Should be identical from external view.

    - Internal change to is_semiprime and is_catalan_pseudoprime.


(wiz)