Add and use FilePathMatch (fixes #262)

BinaryObjectScanner.Matching/FilePathMatch.cs

@@ -0,0 +1,18 @@
+using System.IO;
+
+namespace BinaryObjectScanner.Matching
+{
+    /// <summary>
+    /// File path matching criteria
+    /// </summary>
+    public class FilePathMatch : PathMatch
+    {
+        /// <summary>
+        /// Constructor
+        /// </summary>
+        /// <param name="needle">String representing the search</param>
+        /// <param name="matchExact">True to match exact casing, false otherwise</param>
+        /// <param name="useEndsWith">True to match the end only, false for all contents</param>
+        public FilePathMatch(string needle) : base($"{Path.DirectorySeparatorChar}{needle}", false, true) { }
+    }
+}