Add Act3Ammo, match Act3::Act3 (#1196)

* Implement `Act3Ammo`, match `Act3::Act3`

* Move

* Fix match

LEGO1/lego/legoomni/include/act3ammo.h

@@ -0,0 +1,28 @@
+#ifndef ACT3AMMO_H
+#define ACT3AMMO_H
+
+#include "legopathactor.h"
+#include "mxgeometry/mxgeometry3d.h"
+
+// VTABLE: LEGO1 0x100d8460
+// SIZE 0x1a0
+class Act3Ammo : public LegoPathActor {
+public:
+	Act3Ammo();
+	~Act3Ammo() override;
+
+	void Destroy(MxBool p_fromDestructor) override; // vtable+0x1c
+	void VTable0x70(float p_time) override;         // vtable+0x70
+
+	// SYNTHETIC: LEGO1 0x10053880
+	// Act3Ammo::`scalar deleting destructor'
+
+private:
+	undefined2 m_unk0x154;        // 0x154
+	undefined4 m_unk0x158;        // 0x158
+	undefined4 m_unk0x15c;        // 0x15c
+	Mx3DPointFloat m_unk0x160[3]; // 0x160
+	undefined4 m_unk0x19c;        // 0x19c
+};
+
+#endif // ACT3AMMO_H