[Bleeding] Added Conversations API. Addresses BUKKIT-864

By: rmichela <deltahat@gmail.com>

paper-api/src/test/java/org/bukkit/conversations/ConversationContextTest.java

@@ -0,0 +1,34 @@
+package org.bukkit.conversations;
+
+import org.junit.Test;
+import static org.junit.Assert.*;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ */
+public class ConversationContextTest {
+    @Test
+    public void TestFromWhom() {
+        Conversable conversable = new FakeConversable();
+        ConversationContext context = new ConversationContext(null, conversable, new HashMap<Object, Object>());
+        assertEquals(conversable, context.getForWhom());
+    }
+
+    @Test
+    public void TestPlugin() {
+        Conversable conversable = new FakeConversable();
+        ConversationContext context = new ConversationContext(null, conversable, new HashMap<Object, Object>());
+        assertEquals(null, context.getPlugin());
+    }
+
+    @Test
+    public void TestSessionData() {
+        Conversable conversable = new FakeConversable();
+        Map session = new HashMap();
+        session.put("key", "value");
+        ConversationContext context = new ConversationContext(null, conversable, session);
+        assertEquals("value", context.getSessionData("key"));
+    }
+}