Fix for #42, add check for values returned by libsodium that signal failure, reintroduce xChaCha20 stream API since iosArm32 is not supported any more, use forked resource loader that deletes tmp folders properly

multiplatform-crypto-libsodium-bindings/src/commonMain/kotlin/com.ionspin.kotlin.crypto/GeneralLibsodiumException.kt

@@ -0,0 +1,11 @@
+package com.ionspin.kotlin.crypto
+
+class GeneralLibsodiumException : RuntimeException("Libsodium reported error! Returned value was -1") {
+    companion object {
+        fun Int.ensureLibsodiumSuccess() {
+            if (this == -1) {
+                throw GeneralLibsodiumException()
+            }
+        }
+    }
+}

multiplatform-crypto-libsodium-bindings/src/commonMain/kotlin/com.ionspin.kotlin.crypto/hash/Hash.kt

@@ -15,9 +15,6 @@ expect class Sha512State
 
 expect object Hash {
 
-    //Not present in LazySodium
-    //fun hash(data: UByteArray) : UByteArray
-
     fun sha256(data: UByteArray) : UByteArray
     fun sha256Init() : Sha256State
     fun sha256Update(state: Sha256State, data : UByteArray)

multiplatform-crypto-libsodium-bindings/src/commonMain/kotlin/com.ionspin.kotlin.crypto/stream/Stream.kt

@@ -23,8 +23,8 @@ expect object Stream {
     fun chacha20IetfXor(message : UByteArray, nonce: UByteArray, key: UByteArray) : UByteArray
     fun chacha20IetfXorIc(message: UByteArray, nonce: UByteArray, initialCounter: UInt, key: UByteArray) : UByteArray
 
-//    fun xChacha20Keygen() : UByteArray
-//
-//    fun xChacha20Xor(message : UByteArray, nonce: UByteArray, key: UByteArray) : UByteArray
-//    fun xChacha20XorIc(message : UByteArray, nonce: UByteArray, initialCounter: ULong, key: UByteArray) : UByteArray
+    fun xChacha20Keygen() : UByteArray
+
+    fun xChacha20Xor(message : UByteArray, nonce: UByteArray, key: UByteArray) : UByteArray
+    fun xChacha20XorIc(message : UByteArray, nonce: UByteArray, initialCounter: ULong, key: UByteArray) : UByteArray
 }