refactor encodings

src/commonMain/kotlin/com/infendro/encoding/Base32.kt

@@ -1,17 +1,17 @@
 package com.infendro.encoding
 
 object Base32 : Encoding() {
-    private val CHARACTERS = arrayOf<Byte>(
-        0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48,
-        0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x50,
-        0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58,
-        0x59, 0x5a, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
+    private val CHARACTERS = ubyteArrayOf(
+        0x41U, 0x42U, 0x43U, 0x44U, 0x45U, 0x46U, 0x47U, 0x48U,
+        0x49U, 0x4aU, 0x4bU, 0x4cU, 0x4dU, 0x4eU, 0x4fU, 0x50U,
+        0x51U, 0x52U, 0x53U, 0x54U, 0x55U, 0x56U, 0x57U, 0x58U,
+        0x59U, 0x5aU, 0x32U, 0x33U, 0x34U, 0x35U, 0x36U, 0x37U,
     )
-    private const val PADDING: Byte = 0x3d
+    private const val PADDING: UByte = 0x3dU
 
     override fun encode(
-        bytes: ByteArray,
-    ): ByteArray {
+        bytes: UByteArray,
+    ): UByteArray {
         return encode(
             bytes,
             CHARACTERS,
@@ -20,8 +20,8 @@ object Base32 : Encoding() {
     }
 
     override fun decode(
-        bytes: ByteArray,
-    ): ByteArray {
+        bytes: UByteArray,
+    ): UByteArray {
         return decode(
             bytes,
             CHARACTERS,