Add Log-Rayleigh and Log-Rice continuous distributions as scipy rv_continuous subclasses with PDF, CDF, SF, PPF, ISF, moments, entropy, and RVS methods. Log-Rice reduces to Log-Rayleigh when nu=0. Both are derived via the change-of-variable Y = ln X on their respective parent distributions. Includes unit tests verifying numerical correctness and the change-of-variable identity.