Fix nullability warnings by initializing fields in constructors

X86Disassembler/PE/SectionHeader.cs

@@ -22,6 +22,15 @@ namespace X86Disassembler.PE
         public ushort NumberOfLinenumbers; // Number of line numbers
         public uint Characteristics;       // Characteristics
         
+        /// <summary>
+        /// Initializes a new instance of the SectionHeader class
+        /// </summary>
+        public SectionHeader()
+        {
+            // Initialize string field to avoid nullability warning
+            Name = string.Empty;
+        }
+        
         /// <summary>
         /// Checks if the section contains code
         /// </summary>