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

include/asterisk/module.h

@@ -160,6 +160,24 @@ int ast_update_module_list(int (*modentry)(const char *module, const char *descr
                                            enum ast_module_support_level support_level),
                            const char *like);
 
+/*!
+ * \brief Ask for a list of modules, descriptions, use counts and status.
+ * \param modentry A callback to an updater function
+ * \param like
+ * \param data Data passed into the callback for manipulation
+ *
+ * For each of the modules loaded, modentry will be executed with the resource,
+ * description, and usecount values of each particular module.
+ *
+ * \return the number of modules loaded
+ * \since 13.5.0
+ */
+int ast_update_module_list_data(int (*modentry)(const char *module, const char *description,
+                                                int usecnt, const char *status, const char *like,
+                                                enum ast_module_support_level support_level,
+                                                void *data),
+                                const char *like, void *data);
+
 /*!
  * \brief Check if module with the name given is loaded
  * \param name Module name, like "chan_sip.so"