Create version 2.3.1 (#1061)

Update to version 2.3.1
Closes #1060

trview.app/Resources/trview.app.rc

@@ -106,7 +106,7 @@ CAPTION "About trview"
 FONT 8, "MS Shell Dlg", 0, 0, 0x1
 BEGIN
     ICON            IDI_TRVIEW,IDC_STATIC,14,14,21,20
-    LTEXT           "trview, Version 2.3.0",IDC_STATIC,42,14,114,8,SS_NOPREFIX
+    LTEXT           "trview, Version 2.3.1",IDC_STATIC,42,14,114,8,SS_NOPREFIX
     LTEXT           "Copyright (C) 2022 trview team",IDC_STATIC,42,26,127,17
     LTEXT           "Licensed under the MIT license\r\n\
 Uses DirectXTK (MIT)\r\n\
@@ -197,8 +197,8 @@ LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_UK
 //
 
 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 2,3,0,0
- PRODUCTVERSION 2,3,0,0
+ FILEVERSION 2,3,1,0
+ PRODUCTVERSION 2,3,1,0
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS 0x1L
@@ -214,12 +214,12 @@ BEGIN
         BLOCK "080904b0"
         BEGIN
             VALUE "FileDescription", "TRView"
-            VALUE "FileVersion", "2.3.0.0"
+            VALUE "FileVersion", "2.3.1.0"
             VALUE "InternalName", "trview.exe"
             VALUE "LegalCopyright", "Copyright (C) chreden 2022"
             VALUE "OriginalFilename", "trview.exe"
             VALUE "ProductName", "TRView"
-            VALUE "ProductVersion", "2.3.0.0"
+            VALUE "ProductVersion", "2.3.1.0"
         END
     END
     BLOCK "VarFileInfo"