otInstance Declarations (#473)

* Add otInstance type declaration and update ot APIs to take it as input.

include/cli/cli-console.h

@@ -57,11 +57,12 @@ typedef int (*otCliConsoleOutputCallback)(const char *aBuf,
 /**
  * Initialize the CLI CONSOLE module.
  *
+ * @param[in]  aInstance   The OpenThread instance structure.
  * @param[in]  aCallback   A callback method called to process console output.
  * @param[in]  aContext    A user context pointer.
  *
  */
-void otCliConsoleInit(otCliConsoleOutputCallback aCallback, void *aContext);
+void otCliConsoleInit(otInstance *aInstance, otCliConsoleOutputCallback aCallback, void *aContext);
 
 /**
  * This method is called to feed in a console input line.

include/cli/cli-uart.h

@@ -42,8 +42,10 @@ extern "C" {
 /**
  * Initialize the CLI UART module.
  *
+ * @param[in]  aInstance  The OpenThread instance structure.
+ *
  */
-void otCliUartInit(void);
+void otCliUartInit(otInstance *aInstance);
 
 #ifdef __cplusplus
 }  // extern "C"