scripts(c_formatting): add license banner checker for .c/.h files

Signed-off-by: SorinO <sorin.olari2@gmail.com>

Author: SorinOlari

scripts/check_license_banner.sh

@@ -0,0 +1,58 @@
+#!/bin/sh
+# @copyright Copyright (c) contributors to Project Ocre,
+# which has been established as Project Ocre a Series of LF Projects, LLC
+#
+# SPDX-License-Identifier: Apache-2.0
+
+# Checks all C/C++ files for license banner
+
+set -e
+
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+ROOT_DIR="$(cd "$SCRIPT_DIR/.." && pwd)"
+SRC_DIR="$ROOT_DIR/src"
+
+check_license_banner() {
+    local file="$1"
+    local file_header
+    
+    file_header=$(head -n 6 "$file")
+    
+    # Expected license banner
+    local expected_banner="/**
+ * @copyright Copyright (c) contributors to Project Ocre,
+ * which has been established as Project Ocre a Series of LF Projects, LLC
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */"
+    
+    if [ "$file_header" != "$expected_banner" ]; then
+        echo "ERROR: Missing or incorrect license banner in $file"
+        return 1
+    fi
+    
+    return 0
+}
+
+echo "Checking license banners."
+ERROR_FOUND=0
+for file in $(find . -type f \( -name '*.c' -o -name '*.h' \) \
+    ! -name 'utlist.h' \
+    ! -name 'CMakeCCompilerId.c' \
+    ! -path './tests/Unity/*' \
+    ! -path './build/*' \
+    ! -path './wasm-micro-runtime/*' \
+    ! -path './ocre-sdk/*' \
+    ! -path './src/shell/sha256/*' \
+    ! -path './src/runtime/wamr-wasip1/ocre_api/utils/*' \
+    | sort); do
+
+    if ! check_license_banner "$file"; then
+        ERROR_FOUND=1
+    fi
+done
+
+if [ $ERROR_FOUND -ne 0 ]; then
+    echo "License check failed."
+    exit 1
+fi