Add restraint support to SmartDartMove with RMSD and Boresch restraints

- Introduced initializeRestraints() and initializeSystem() methods for force setup
- Integrated AlchemicalExternalRestrainedLangevinIntegrator to support lambda-dependent restraints
- Added options for restraint strength (K_r, K_angle, K_RMSD), lambda function, and atom selections
- Implemented pre-/post-move structure saving for debug visualization
- Enabled dynamic context parameter updates to toggle restraints on/off
- Refactored pose update logic and pose matching with quaternion+translation thresholds                   - Cleaned up legacy code and added logging for move diagnostics

Author: Steven Ayoub