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/host-clients/src/makefile

@@ -0,0 +1,44 @@
+#
+# Copyright (C) 2019 Intel Corporation.  All rights reserved.
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+#
+
+CC = gcc
+CFLAGS := -Wall -g
+
+# Add this to make compiler happy
+CFLAGS += -DWASM_ENABLE_INTERP=1
+
+host_api_c=../../../../host-agent/host-api-c
+attr_container_dir=../../../../wamr/core/app-framework/app-native-shared
+coap_dir=../../../../host-agent/coap
+shared_dir=../../../../wamr/core/shared
+
+# core
+INCLUDE_PATH = -I$(host_api_c)/src -I$(attr_container_dir)/ \
+               -I$(coap_dir)/er-coap -I$(coap_dir)/er-coap/extension \
+               -I$(shared_dir)/include \
+               -I$(shared_dir)/utils \
+               -I$(shared_dir)/platform/include/ \
+               -I$(shared_dir)/platform/linux/
+
+LIB := $(host_api_c)/src/libhostapi.a
+EXE := ./hostapp
+
+App_C_Files := host_app_sample.c
+
+OBJS := $(App_C_Files:.c=.o)
+
+all: $(EXE)
+
+%.o: %.c
+	@$(CC) $(CFLAGS) -c $< -o $@ $(INCLUDE_PATH)
+
+$(EXE): $(OBJS)
+	@rm -f $(EXE)
+	@$(CC) $(OBJS) -o $(EXE) $(LIB) -lpthread -lrt
+	@rm -f $(OBJS)
+
+.PHONY: clean
+clean:
+	rm -f $(OBJS) $(EXE)