Lot of global changes (#10)

Global update

app/src/main/kotlin/com/meloda/fast/model/UpdateItem.kt

@@ -0,0 +1,35 @@
+package com.meloda.fast.model
+
+import android.os.Parcelable
+import com.google.gson.Gson
+import kotlinx.parcelize.Parcelize
+
+@Parcelize
+data class UpdateItem(
+    val id: Int,
+    val versionName: String,
+    val versionCode: Int,
+    val mandatory: Int,
+    val changelog: String?,
+    val enabled: Int,
+    val fileName: String,
+    val date: Long,
+    val extension: String,
+    val originalName: String,
+    val fileSize: Int,
+    val preRelease: Int,
+    val downloadLink: String
+) : Parcelable {
+
+    fun isMandatory(): Boolean = mandatory == 1
+    fun isEnabled(): Boolean = enabled == 1
+    fun isPreRelease(): Boolean = preRelease == 1
+
+    override fun toString(): String {
+        return Gson().toJson(this)
+    }
+
+}
+
+@Parcelize
+data class UpdateActualUrl(val url: String) : Parcelable