v0.8.0

Command catalogue: every command, argument and option of FreeIPA 4.9.0 to
4.13.4, with the release that introduced each, generated from FreeIPA's own
API.txt. Clients can opt in to checking every call against it before it
is sent. Checked against real FreeIPA 4.9, 4.12 and 4.13 by the contract
tests, which now run with validation on.

Added

• Commands, LookupCommand, Command and Param: the FreeIPA command
  catalogue for releases 4.9.0 to 4.13.4 (positional arguments, options,
  types and the release that introduced each), generated from API.txt with
  go generate; a nightly CI job fails when it is out of date
• WithValidation and ErrInvalidCall: opt-in check of every call against
  the catalogue before it is sent, including each call inside Batch;
  commands and options newer than the server give ErrNotSupported
• ipatest: built-in commands reject options the command lacks at the
  reported release (OptionError) and commands added after it;
  passkeyconfig_show is modelled

Changed

• ipatest: built-in commands now reject options they lack and commands
  newer than the SetVersion release (3005 / 905), so consumer tests that
  sent such options may fail on upgrade; SetVersion now affects behaviour,
  not only the reported string. Handle overrides are not checked