Changes

• Add cl_predict_players option for predicting other players (off by default)
  • Similar to antiping from DDNet client
• Hooks, nameplates, and flags are rendered using the predicted positions
• Removed prediction error checking

Things to implement in the future

• Predict actions on other tees
  • Currently when you hammer another tee with cl_predict_players on, the force on the other tee isn't tee isn't predicted
• Projectile prediction (for grenade, shotgun, pis...