Method Clear

libcppcryptfs/util/KeyCache.h:132–132

	bool Unregister(id_t id);
	void Enable();
	void Clear() { ClearInternal(false); }
	void Disable() { ClearInternal(true); }
	bool Store(id_t id, const BYTE* ptr, size_t len);
	bool Retrieve(id_t id, const vector<KeyBuf>& kbmb);