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/case_base.py

@@ -0,0 +1,29 @@
+#
+# Copyright (C) 2019 Intel Corporation.  All rights reserved.
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+#
+
+import os
+import json
+from test.test_support import _run_suite
+
+class CTestCaseBase(object):
+    def __init__(self, suite):
+          self.m_suite = suite
+          return
+    def on_get_case_description(self):
+        return "Undefined"
+
+    def on_setup_case(self):
+        return True, ''
+
+    def on_cleanup_case(self):
+        return True, ''
+
+    # called by the framework
+    def on_run_case(self):
+        return True, ''
+
+    def get_suite(self):
+        return self.m_suite
+