1.5.0: New Policies

Changes in 1.5.0:

1. Add support for new policies: ✨
   • UnitreeWoGaitPolicy from unitree_rl_lab
   • TwistPolicy from TWIST, as #9
   • KungfuBotGeneralPolicy from PBHC-KungfuBot2, as #13
2. Fix #10, improve stability for BeyondmimicPolicy with G1FlatEnvCfg.
3. Update control mapping for AmoPolicy, enable flexible yaw turning.
4. Add config in Pipeline for safety_check feature.
5. Several optimizations.

Full Changelog: 1.4.2...1.5.0