Add some hash functions

- new: md2, md4, md5, sha384, sha512, xxhash-32, xxhash-64
- put Blake2sp hash stuff back to rar code
- added the hashes to GUI and Explorer Menu code

CPP/7zip/Archive/Rar/Rar5Handler.cpp

@@ -2962,4 +2962,35 @@ REGISTER_ARC_I(
   NULL)
 
 }}
-
+
+
+class CBlake2spHasher:
+  public IHasher,
+  public CMyUnknownImp
+{
+  CBlake2sp _blake;
+  Byte mtDummy[1 << 7];
+
+public:
+  CBlake2spHasher() { Init(); }
+
+  MY_UNKNOWN_IMP
+  INTERFACE_IHasher(;)
+};
+
+STDMETHODIMP_(void) CBlake2spHasher::Init() throw()
+{
+  Blake2sp_Init(&_blake);
+}
+
+STDMETHODIMP_(void) CBlake2spHasher::Update(const void *data, UInt32 size) throw()
+{
+  Blake2sp_Update(&_blake, (const Byte *)data, size);
+}
+
+STDMETHODIMP_(void) CBlake2spHasher::Final(Byte *digest) throw()
+{
+  Blake2sp_Final(&_blake, digest);
+}
+
+REGISTER_HASHER(CBlake2spHasher, 0x202, "BLAKE2sp", BLAKE2S_DIGEST_SIZE)