Added Instagram (#14)

* Added Facebook Messenger and Google Business Messages channel

* Added import for serialized name

* Added Instagram

Co-authored-by: cm\robin.voogt <rv@cm.nl>

Author: robinvoogt

pom.xml

@@ -5,7 +5,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.github.cmdotcom</groupId>
     <artifactId>text-sdk-java</artifactId>
-    <version>1.2-SNAPSHOT</version>
+    <version>1.3-SNAPSHOT</version>
     <build>
         <plugins>
 

src/main/java/com/cmtelecom/text/sdk/models/Channel.java

@@ -97,5 +97,13 @@ public enum  Channel {
     ///     Note that CM needs to configure this for you to work.
     /// </remarks>
     @SerializedName("Google Business Messages")
-    GoogleBusinessMessages
+    GoogleBusinessMessages,
+
+        /// <summary>
+    ///     Messages will be sent over Instagram.
+    /// </summary>
+    /// <remarks>
+    ///     Note that CM needs to configure this for you to work.
+    /// </remarks>
+    Instagram
 }