tp5 step 1 solution

Author: ctruchi

tp5/src/main/kotlin/fmt/kotlin/fundamentals/Bottle.kt

@@ -1,11 +1,11 @@
 package fmt.kotlin.fundamentals
 
-class Bottle(
+data class Bottle(
     val name: String,
     val year: Int
 ) {
 
-    fun isEqualTo(bottle: Bottle) = false
+    fun isEqualTo(bottle: Bottle) = this == bottle
 
-    fun isSameInstance(bottle: Bottle) = false
+    fun isSameInstance(bottle: Bottle) = this === bottle
 }