chore(windows): Rename functions if "Core" in name is redundant ⛏️

[rc-swag]

The following functions can be renamed or even removed now that legacy core has been removed. #8593

• // Core was mainly as a point of difference vs the windows engine core while the feature flag was present. So could remove the core name
  ReleaseKeyboardMemoryCore
  ReleaseStateMemoryCore

• // These functions are about saving and restoring the keyboard option list in the core. used in the case of testing a keystroke
  // Due to the optimisation of just using the cached core actions in the case of the !Updateable call there is no longer a need for these 3
  // functions and there test cases so can be removed as dead code.
  UpdateKeyboardOptionsCore
  SaveKeyboardOptionsCore
  RestoreKeyboardOptionsCore
  DisposeKeyboardOptionsCore

• // Used for loading and saving options between the core loaded keyboard and the windows registry. Core was mainly as a point of difference vs the windows engine core while the feature flag was present.
  // it does cary more meaning and suggest a name the suggest the flow of data LoadKeyboardOptionsREGtoCore. SaveKeyboardOptionCoretoReg
  LoadKeyboardOptionsREGCore
  SaveKeyboardOptionREGCore

• // Was named when refactoring the ProcessEvent call to be better optimised around the TSF not updatable call
  Process_Event_Core

• // The Core was mainly as a point of difference vs the windows engine core while the feature flag was present. So could remove the core name
  MapKeyboardCore
  MapKeyRuleCore