manager - Add Content-Type parameter to the SendText action

This patch allows a user of AMI to now specify the type of message
content contained within by setting the 'Content-Type' parameter.

Note, the AMI version has been bumped for this change.

ASTERISK-28945 #close

Change-Id: Ibb5315702532c6b954e1498beddc8855fabdf4bb

include/asterisk/frame.h

@@ -335,9 +335,16 @@ enum ast_control_frame_type {
 	AST_CONTROL_RECORD_MUTE = 1103,	/*!< Indicated to a channel in record to mute/unmute (i.e. write silence) recording */
 };
 
+/*!
+ * \brief Actions to indicate to, and be handled on channel read
+ *
+ * The subtype to specify for an AST_CONTROL_READ_ACTION frame. These
+ * frames are then to be enacted on within a channel's read thread.
+ */
 enum ast_frame_read_action {
 	AST_FRAME_READ_ACTION_CONNECTED_LINE_MACRO,
 	AST_FRAME_READ_ACTION_SEND_TEXT,
+	AST_FRAME_READ_ACTION_SEND_TEXT_DATA,
 };
 
 struct ast_control_read_action_payload {

include/asterisk/message.h

@@ -479,6 +479,24 @@ struct ast_msg_data_attribute {
 struct ast_msg_data *ast_msg_data_alloc(enum ast_msg_data_source_type source,
 	struct ast_msg_data_attribute attributes[], size_t count);
 
+/*!
+ * \brief Allocates an ast_msg_data structure.
+ * \since 13.35.0
+ * \since 16.12.0
+ * \since 17.6.0
+ *
+ * \param source The source type of the message
+ * \param to Where the message is sent to
+ * \param from Where the message is sent from
+ * \param content_type Content type of the body
+ * \param body The message body
+ *
+ * \return Pointer to msg structure or NULL on allocation failure.
+ *         Caller must call ast_free when done.
+ */
+struct ast_msg_data *ast_msg_data_alloc2(enum ast_msg_data_source_type source_type,
+	const char *to, const char *from, const char *content_type, const char *body);
+
 /*!
  * \brief Clone an ast_msg_data structure
  * \since 13.22.0