ARI: Added new functionality to get all module information.

An http request can be sent to retrieve a list of all existing modules,
including the resource name, description, use count, status, and
support level.

The command "curl -v -u user:pass -X GET 'http://localhost:8088/ari/
asterisk/modules" (or something similar, depending on configuration)
can be run in the terminal to access this new functionality.

For more information, see:
https://wiki.asterisk.org/wiki.display/~bford/Asterisk+ARI+Resource

* Added new ARI functionality
* Information on modules can now be retrieved

Change-Id: I63cbbf0ec0c3544cc45ed2a588dceabe91c5e0b0

res/ari/ari_model_validators.h

@@ -206,6 +206,24 @@ int ast_ari_validate_config_info(struct ast_json *json);
  */
 ari_validator ast_ari_validate_config_info_fn(void);
 
+/*!
+ * \brief Validator for Module.
+ *
+ * Details of an Asterisk module
+ *
+ * \param json JSON object to validate.
+ * \returns True (non-zero) if valid.
+ * \returns False (zero) if invalid.
+ */
+int ast_ari_validate_module(struct ast_json *json);
+
+/*!
+ * \brief Function pointer to ast_ari_validate_module().
+ *
+ * See \ref ast_ari_model_validators.h for more details.
+ */
+ari_validator ast_ari_validate_module_fn(void);
+
 /*!
  * \brief Validator for SetId.
  *
@@ -1244,6 +1262,12 @@ ari_validator ast_ari_validate_application_fn(void);
  * - max_open_files: int
  * - name: string (required)
  * - setid: SetId (required)
+ * Module
+ * - description: string (required)
+ * - name: string (required)
+ * - status: string (required)
+ * - support_level: string (required)
+ * - use_count: int (required)
  * SetId
  * - group: string (required)
  * - user: string (required)