New Issue: [Library Stabilization] Should we rename the BigInteger lucnum* methods?

17733, "lydia-duncan", "[Library Stabilization] Should we rename the BigInteger lucnum* methods?", "2021-05-13T20:46:12Z"

bigint.lucnum() and bigint.lucnum2() are short for Lucas Number. I think we should rename these methods to bigint.lucasNum() and bigint.lucasNum2().

Note - the functions on which they are based are defined here: Number Theoretic Functions (GNU MP 6.2.1)