Remove FileMatchPattern delegate and replace with System.Func

This was only added because I initially thought it would read better, but it also obscures the in and out types. Since there's no functional difference, I removed it again just to reduce the amount of custom code.

Author: chrisyarbrough

Diff for: source/AndroidResolver/AndroidResolver.csproj

@@ -59,7 +59,6 @@
     <Compile Include="src\CommandLine.cs" />
     <Compile Include="src\CommandLineDialog.cs" />
     <Compile Include="src\EmbeddedResource.cs" />
-    <Compile Include="src\FileMatchPattern.cs" />
     <Compile Include="src\GradleResolver.cs" />
     <Compile Include="src\GradleTemplateResolver.cs" />
     <Compile Include="src\GradleWrapper.cs" />

Diff for: source/AndroidResolver/src/FileMatchPattern.cs

@@ -1080,7 +1080,7 @@ internal static void Log(string message, Google.LogLevel level = LogLevel.Info)
         /// <summary>
         /// Patterns of files that are monitored to trigger auto resolution.
         /// </summary>
-        private static HashSet<FileMatchPattern> autoResolveFilePatterns = new HashSet<FileMatchPattern>();
+        private static HashSet<Func<string, bool>> autoResolveFilePatterns = new HashSet<Func<string, bool>>();
 
         /// <summary>
         /// Add file patterns to monitor to trigger auto resolution.
@@ -1089,7 +1089,7 @@ internal static void Log(string message, Google.LogLevel level = LogLevel.Info)
         /// resolution.</param>
         public static void AddAutoResolutionFilePatterns(IEnumerable<Regex> patterns) {
             // Only regex patterns are supported in the public API, but a more performant default is used internally.
-            autoResolveFilePatterns.UnionWith(patterns.Select<Regex, FileMatchPattern>(p => p.IsMatch));
+            autoResolveFilePatterns.UnionWith(patterns.Select<Regex, Func<string, bool>>(p => p.IsMatch));
         }
 
         /// <summary>