hash StreamProcessor is now public

better docs on BinaryId
some sugar

src/commonTest/kotlin/BinaryIdTest.kt

@@ -0,0 +1,16 @@
+import net.sergeych.crypto2.BinaryId
+import kotlin.test.Test
+import kotlin.test.assertEquals
+
+class BinaryIdTest {
+    @Test
+    fun testSizes() {
+        val a = BinaryId.createRandom(5, 4)
+//        println(a.id.toDump())
+//        println(pack(a).toDump())
+        assertEquals(2, a.body.size)
+        assertEquals(5, a.magic)
+        assertEquals(4, a.id.size)
+
+    }
+}