Imported more library files

Not compiling currently

inc/silabs_utils.h

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+/*
+ *
+ *    Copyright (c) 2020 Project CHIP Authors
+ *    Copyright (c) 2022 Silabs.
+ *    All rights reserved.
+ *
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
+
+#pragma once
+
+// EFR Logging
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void silabsInitLog(void);
+
+void silabsLog(const char * aFormat, ...);
+#define SILABS_LOG(...) silabsLog(__VA_ARGS__);
+void appError(int err);
+
+#ifdef __cplusplus
+}
+
+// Output logs to RTT by defaults
+#ifndef SILABS_LOG_OUT_UART
+#define SILABS_LOG_OUT_UART 0
+#endif
+
+#include <lib/core/CHIPError.h>
+void appError(CHIP_ERROR error);
+#endif