v0.5.0

• Added fluent auto(): a generator is derived from the property closure's
  own signature for every parameter the forAll() map does not cover, via
  core 0.4's Gen::forParameters() (the @param psalm type from the
  closure's docblock over the native type; a type it cannot read throws
  naming the function and the parameter). The map becomes the overrides and
  may be partial; forAll() now defaults to [], so a fully-typed closure
  needs no map at all; with auto() a map key that is not a parameter of the
  closure is an error. Strictly opt-in — it will never become the default —
  and deliberately without a PROPERTY_AUTO environment variable. Without
  auto() behavior is unchanged. Parity with the Testo adapter's
  #[Property(auto: true)].
• Requires rasuvaeff/property-testing-core ^0.4.