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/framework/test_api.py

@@ -0,0 +1,98 @@
+#
+# Copyright (C) 2019 Intel Corporation.  All rights reserved.
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+#
+
+import logging
+import threading
+from .test_utils import *
+
+global logger
+logger = None
+
+def api_init_log(log_path):
+    global logger
+    print "api_init_log: " + log_path
+    logger = logging.getLogger(__name__)
+
+    logger.setLevel(level = logging.INFO)
+    handler = logging.FileHandler(log_path)
+    handler.setLevel(logging.INFO)
+    formatter = logging.Formatter('%(asctime)s - %(levelname)s - %(message)s')
+    handler.setFormatter(formatter)
+
+    console = logging.StreamHandler()
+    console.setLevel(logging.INFO)
+
+    logger.addHandler(handler)
+    logger.addHandler(console)
+
+    return
+
+def api_log(message):
+    global logger
+    if logger is None:
+        print message
+    else:
+        logger.info (message)
+    return
+
+def api_log_error(message):
+    global logger
+    if logger is None:
+        print message
+    else:
+        logger.error (message)
+    return
+
+def api_logv(message):
+    global logger
+    if logger is None:
+        print message
+    else:
+        logger.info(message)
+    return
+
+#####################################3
+global g_case_runner_event
+def api_wait_case_event(timeout):
+    global g_case_runner_event
+    g_case_runner_event.clear()
+    g_case_runner_event.wait(timeout)
+
+def api_notify_case_runner():
+    global g_case_runner_event
+    g_case_runner_event.set()
+
+def api_create_case_event():
+    global g_case_runner_event
+    g_case_runner_event = threading.Event()
+
+#######################################
+
+def api_init_globals():
+    global _global_dict
+    _global_dict = {}
+
+def api_set_value(name, value):
+    _global_dict[name] = value
+
+def api_get_value(name, defValue=None):
+    try:
+        return _global_dict[name]
+    except KeyError:
+        return defValue
+
+
+#########################################
+global root_path
+def api_set_root_path(root):
+    global root_path
+    root_path = root
+
+def api_get_root_path():
+    global root_path
+    return root_path;
+
+
+