v5.0.2: fix notification campaign class enum missing values (#36)

## Problem

Notification's campaign entity is built on top of Campaign's original `StateEnum`, but extending it with a few more calculated-derived states for communicating those to the consumers.

These are not part of the original enum and therefore the constructor of the Campaign Class fails when initiating such instances

## Solution

Extend the `StateEnum` to support the full range of values:
 - `ENABLED` : enabled
 - `DISABLED` : disabled
 - `ARCHIVED` : archived
 - `EXPIRED` : expired
 - `SCHEDULED` : scheduled
 - `RUNNING` : running
 - `DRAFT` : draft

Co-authored-by: Kristina Kupreeva <kristine.kupreeva@gmail.com>

Author: altJake

docs/Campaign.md

@@ -54,7 +54,10 @@ Name | Value
 ENABLED | "enabled"
 DISABLED | "disabled"
 ARCHIVED | "archived"
-
+EXPIRED | "expired"
+SCHEDULED | "scheduled"
+RUNNING | "running"
+DRAFT | "draft"
 
 
 ## Enum: List<FeaturesEnum>

src/main/java/one/talon/model/Campaign.java

@@ -78,10 +78,18 @@ public class Campaign {
   @JsonAdapter(StateEnum.Adapter.class)
   public enum StateEnum {
     ENABLED("enabled"),
-    
+
     DISABLED("disabled"),
-    
-    ARCHIVED("archived");
+
+    ARCHIVED("archived"),
+
+    EXPIRED("expired"),
+
+    SCHEDULED("scheduled"),
+
+    RUNNING("running"),
+
+    DRAFT("draft");
 
     private String value;