Add Argon2

 * trivial fixes by hackyminer

Author: Masao Hidemitsu

binding.gyp

@@ -32,6 +32,12 @@
                 "src/x15.c",
                 "src/x16r.c",
                 "src/x16rv2.c",
+                "src/crypto/argon2/argon2.c",
+                "src/crypto/argon2/core.c",
+                "src/crypto/argon2/encoding.c",
+                "src/crypto/argon2/opt.c",
+                "src/crypto/argon2/thread.c",
+                "src/crypto/argon2/blake2/blake2b.c",
                 "src/sha3/sph_hefty1.c",
                 "src/sha3/sph_fugue.c",
                 "src/sha3/aes_helper.c",

package.json

@@ -19,6 +19,7 @@
         "nan": "^2.14.1"
     },
     "keywords": [
+        "argon2",
         "scrypt",
         "scryptjane",
         "script-n",