handle newlines before inline images and support larger data streams in brute force search

src/UglyToad.PdfPig/Parser/Parts/BruteForceSearcher.cs

@@ -49,6 +49,10 @@
             bool endobjFound = false;
             do
             {
+                if (loopProtection >= 700_000)
+                {
+                    
+                }
                 if (loopProtection > 1_000_000)
                 {
                     throw new PdfDocumentFormatException("Failed to brute-force search the file due to an infinite loop.");
@@ -92,6 +96,7 @@
                     {
                         bytes.MoveNext();
                         currentOffset++;
+                        loopProtection = 0;
                     }
 
                     continue;

src/UglyToad.PdfPig/Tokenization/Scanner/CoreTokenScanner.cs

@@ -210,7 +210,7 @@
         {
             // The ID operator should be followed by a single white-space character, and the next character is interpreted
             // as the first byte of image data. 
-            if (inputBytes.CurrentByte != ' ')
+            if (!ReadHelper.IsWhitespace(inputBytes.CurrentByte))
             {
                 throw new PdfDocumentFormatException($"No whitespace character following the image data (ID) operator. Position: {inputBytes.CurrentOffset}.");
             }