implement Blake2b and Blake2s

src/commonTest/kotlin/com/infendro/hash/blake2/Blake2s-224.kt

@@ -0,0 +1,33 @@
+package com.infendro.hash.blake2
+
+import kotlin.test.Test
+import kotlin.test.assertContentEquals
+import kotlin.test.assertEquals
+
+class `Blake2s-224 Test` {
+    val function = Blake2s(28)
+
+    @Test
+    fun `bytes and block`() {
+        assertEquals(28, function.bytes)
+        assertEquals(224, function.bits)
+        assertEquals(64, function.block)
+    }
+
+    @Test
+    fun `empty bytearray`() {
+        val expected = ubyteArrayOf(
+            0x1fU, 0xa1U, 0x29U, 0x1eU,
+            0x65U, 0x24U, 0x8bU, 0x37U,
+            0xb3U, 0x43U, 0x34U, 0x75U,
+            0xb2U, 0xa0U, 0xddU, 0x63U,
+            0xd5U, 0x4aU, 0x11U, 0xecU,
+            0xc4U, 0xe3U, 0xe0U, 0x34U,
+            0xe7U, 0xbcU, 0x1eU, 0xf4U,
+        )
+        val actual = function.hash(
+            UByteArray(0)
+        )
+        assertContentEquals(expected, actual)
+    }
+}