Built and included modified libsodium with additional wrappers, working blake, sha256/512 hashes

multiplatform-crypto/src/commonMain/kotlin/com/ionspin/kotlin/crypto/hash/blake2b/Blake2bPure.kt

@@ -309,7 +309,7 @@ class Blake2bPure(val key: UByteArray? = null, val hashLength: Int = 64) : Blake
 
     }
 
-    override fun update(data: String) {
+    fun update(data: String) {
         update(data.encodeToByteArray().toUByteArray())
     }
 

multiplatform-crypto/src/commonMain/kotlin/com/ionspin/kotlin/crypto/hash/sha/Sha256Pure.kt

@@ -235,7 +235,7 @@ class Sha256Pure : Sha256 {
     var buffer = UByteArray(BLOCK_SIZE_IN_BYTES) { 0U }
 
 
-    override fun update(data: String) {
+    fun update(data: String) {
         return update(data.encodeToByteArray().toUByteArray())
     }
 

multiplatform-crypto/src/commonMain/kotlin/com/ionspin/kotlin/crypto/hash/sha/Sha512Pure.kt

@@ -309,7 +309,7 @@ class Sha512Pure : Sha512 {
     var buffer = UByteArray(BLOCK_SIZE_IN_BYTES) { 0U }
 
 
-    override fun update(data: String) {
+    fun update(data: String) {
         return update(data.encodeToByteArray().toUByteArray())
     }