Add more doc copied from libsodium

sample/src/commonMain/kotlin/com/ionspin/kotlin/crypto/sample/DataPackage.kt

@@ -0,0 +1,36 @@
+package com.ionspin.kotlin.crypto.sample
+
+import com.ionspin.kotlin.crypto.util.encodeToUByteArray
+import com.ionspin.kotlin.crypto.util.hexStringToUByteArray
+
+/**
+ * Created by Ugljesa Jovanovic
+ * ugljesa.jovanovic@ionspin.com
+ * on 30-Oct-2020
+ */
+interface DataPackage {
+    fun getContentAsUByteArray() : UByteArray
+    fun getStringRepresentation() : String
+}
+
+data class Utf8StringData(val content: String) : DataPackage {
+    override fun getContentAsUByteArray(): UByteArray {
+        return content.encodeToUByteArray()
+    }
+
+    override fun getStringRepresentation(): String {
+        return content
+    }
+}
+
+data class HexadecimalStringData(val content: String) : DataPackage {
+    override fun getContentAsUByteArray(): UByteArray {
+        return content.hexStringToUByteArray()
+    }
+
+    override fun getStringRepresentation(): String {
+        return content
+    }
+}
+
+data class FileData(val filePath: )

sample/src/commonMain/kotlin/com/ionspin/kotlin/crypto/sample/FileWrapper.kt

@@ -0,0 +1,11 @@
+package com.ionspin.kotlin.crypto.sample
+
+/**
+ * Created by Ugljesa Jovanovic
+ * ugljesa.jovanovic@ionspin.com
+ * on 30-Oct-2020
+ */
+expect class FileWrapper(path: String) {
+    fun exists() : Boolean
+    fun rea
+}

sample/src/commonMain/kotlin/com/ionspin/kotlin/crypto/sample/ui/LandingController.kt

@@ -7,4 +7,5 @@ package com.ionspin.kotlin.crypto.sample.ui
  */
 class LandingController {
 
+
 }

sample/src/commonMain/kotlin/com/ionspin/kotlin/crypto/sample/workbench/WorkbenchController.kt

@@ -0,0 +1,7 @@
+package com.ionspin.kotlin.crypto.sample.workbench
+
+/**
+ * Created by Ugljesa Jovanovic
+ * ugljesa.jovanovic@ionspin.com
+ * on 30-Oct-2020
+ */

sample/src/commonMain/kotlin/com/ionspin/kotlin/crypto/sample/workbench/WorkbenchElement.kt

@@ -0,0 +1,10 @@
+package com.ionspin.kotlin.crypto.sample.workbench
+
+/**
+ * Created by Ugljesa Jovanovic
+ * ugljesa.jovanovic@ionspin.com
+ * on 30-Oct-2020
+ */
+interface WorkbenchElement {
+
+}

sample/src/commonMain/kotlin/com/ionspin/kotlin/crypto/sample/workbench/WorkbenchView.kt

@@ -0,0 +1,10 @@
+package com.ionspin.kotlin.crypto.sample.workbench
+
+/**
+ * Created by Ugljesa Jovanovic
+ * ugljesa.jovanovic@ionspin.com
+ * on 30-Oct-2020
+ */
+interface WorkbenchView {
+
+}