v1.0.1 of pray_calc_dart

Islamic prayer times for Dart and Flutter. Pure Dart port of the pray-calc library implementing the MCW seasonal model and dynamic twilight angles. Uses nrel_spa for the NREL Solar Position Algorithm. Changelog excerpt: ### Fixed - Prayer times are now host-timezone-independent. getTimesnormalizes the caller's dateto a stable UTC-noon reference (DateTime.utc(y, m, d, 12)) before passing it to getSpaand all astronomical calculations. Previously, a local DateTime(2024, 3, 15)in a UTC+12 zone would reach getSpaas UTC March 14, shifting all times by one civil day.