Cleanup some warnings.

Source/Framework/IO/ByteBuffer.cs

@@ -107,7 +107,7 @@ namespace Framework.IO
         public string ReadCString()
         {
             ResetBitPos();
-            StringBuilder tmpString = new StringBuilder();
+            StringBuilder tmpString = new();
             char tmpChar = readStream.ReadChar();
             char tmpEndChar = Convert.ToChar(Encoding.UTF8.GetString(new byte[] { 0 }));
 

Source/Framework/IO/StringArguments.cs

@@ -263,7 +263,7 @@ namespace Framework.IO
 
         bool Match(string pattern, out Match m)
         {
-            Regex r = new Regex(pattern);
+            Regex r = new(pattern);
             m = r.Match(activestring);
             return m.Success;
         }

Source/Framework/IO/Zlib/Deflate.cs

@@ -217,9 +217,9 @@ namespace Framework.IO
 			public ct_data[] dyn_dtree=new ct_data[2*D_CODES+1];	// distance tree
 			public ct_data[] bl_tree=new ct_data[2*BL_CODES+1];		// Huffman tree for bit lengths
 
-			public tree_desc l_desc=new tree_desc();	// desc. for literal tree
-			public tree_desc d_desc=new tree_desc();	// desc. for distance tree
-			public tree_desc bl_desc=new tree_desc();	// desc. for bit length tree
+			public tree_desc l_desc=new();	// desc. for literal tree
+			public tree_desc d_desc=new();	// desc. for distance tree
+			public tree_desc bl_desc=new();	// desc. for bit length tree
 
 			// number of codes at each bit length for an optimal tree
 			public ushort[] bl_count=new ushort[MAX_BITS+1];

Source/Framework/IO/Zlib/Trees.cs

@@ -240,9 +240,9 @@ namespace Framework.IO
 			}
 		}
 
-		private static readonly static_tree_desc static_l_desc=new static_tree_desc(static_ltree, extra_lbits, LITERALS+1, L_CODES, MAX_BITS);
-		private static readonly static_tree_desc static_d_desc=new static_tree_desc(static_dtree, extra_dbits, 0, D_CODES, MAX_BITS);
-		private static readonly static_tree_desc static_bl_desc=new static_tree_desc(null, extra_blbits, 0, BL_CODES, MAX_BL_BITS);
+		private static readonly static_tree_desc static_l_desc=new(static_ltree, extra_lbits, LITERALS+1, L_CODES, MAX_BITS);
+		private static readonly static_tree_desc static_d_desc=new(static_dtree, extra_dbits, 0, D_CODES, MAX_BITS);
+		private static readonly static_tree_desc static_bl_desc=new(null, extra_blbits, 0, BL_CODES, MAX_BL_BITS);
 
 		// ===========================================================================
 		// Local (static) routines in this file.

Source/Framework/IO/Zlib/compress.cs

@@ -26,7 +26,7 @@ namespace Framework.IO
     {
         public static byte[] Compress(byte[] data)
         {
-            ByteBuffer buffer = new ByteBuffer();
+            ByteBuffer buffer = new();
             buffer.WriteUInt8(0x78);
             buffer.WriteUInt8(0x9c);