Revert "refactor(controller): Remove unused motion control methods"

This reverts commit bd023eaba3.

include/controller.hpp

@@ -43,6 +43,7 @@ public:
     bool Hello();
     bool Stretch();
     bool SwitchJoystick(bool flag);
+    bool Content();
     bool Heart();
     bool Pose(bool flag);
     bool Scrape();
@@ -51,6 +52,21 @@ public:
     bool FrontPounce();
     bool Dance1();
     bool Dance2();
+    bool LeftFlip();
+    bool BackFlip();
+    bool HandStand(bool flag);
+    bool FreeWalk();
+    bool FreeBound(bool flag);
+    bool FreeJump(bool flag);
+    bool FreeAvoid(bool flag);
+    bool ClassicWalk(bool flag);
+    bool WalkUpright(bool flag);
+    bool CrossStep(bool flag);
+    bool AutoRecoverSet(bool flag);
+    bool StaticWalk();
+    bool TrotRun();
+    bool EconomicGait();
+    bool SwitchAvoidMode();
     bool TrajectoryFollow(const std::vector<std::array<float, 6>>& path);
     bool FootRaiseHeight(float height);