LibVT: Rename escape$f to HVP (Horizontal and Vertical Position)

Author: https://github.com/linusg
Commit: be57b81336
Pull-request: https://github.com/SerenityOS/serenity/pull/1137
Reviewed-by: https://github.com/awesomekling

Libraries/LibVT/Terminal.h

@@ -171,7 +171,7 @@ private:
     void escape$L(const ParamVector&);
     void escape$h_l(bool, bool, const ParamVector&);
     void DA(const ParamVector&);
-    void escape$f(const ParamVector&);
+    void HVP(const ParamVector&);
     void NEL();
     void IND();
     void RI();