Apply clang-format for more source files (#795)

Apply clang-format for C source files in folder core/app-mgr,
core/app-framework, and test-tools.
And rename folder component_test to component-test, update
zephyr build document.

Signed-off-by: Wenyong Huang <wenyong.huang@intel.com>

test-tools/component-test/suites/01-life-cycle/test-app/05_event_internal_subscriber.c

@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2019 Intel Corporation.  All rights reserved.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+ */
+
+#include "wasm_app.h"
+#include "wa-inc/request.h"
+
+uint32 mid;
+unsigned long sender;
+
+void
+over_heat_event_handler(request_t *request)
+{
+    response_t response[1];
+    attr_container_t *payload;
+
+    payload = attr_container_create("wasm app response payload");
+    if (payload == NULL)
+        return;
+
+    attr_container_set_string(&payload, "key1", "value1");
+    attr_container_set_string(&payload, "key2", "value2");
+
+    response->mid = mid;
+    response->reciever = sender;
+    set_response(response, CONTENT_2_05, FMT_ATTR_CONTAINER,
+                 (const char *)payload,
+                 attr_container_get_serialize_length(payload));
+    printf("reciver: %lu, mid:%d\n", response->reciever, response->mid);
+    api_response_send(response);
+
+    attr_container_destroy(payload);
+}
+
+void
+res1_handler(request_t *request)
+{
+    mid = request->mid;
+    sender = request->sender;
+    api_subscribe_event("alert/overheat", over_heat_event_handler);
+}
+
+void
+on_init()
+{
+    /* register resource uri */
+    api_register_resource_handler("/res1", res1_handler);
+}
+
+void
+on_destroy()
+{
+    /* real destroy work including killing timer and closing sensor is
+     * accomplished in wasm app library version of on_destroy() */
+}