Updating displayed PngComponents version to 1.7

(cherry picked from commit 82f5ad4fd90b3b25d5442bc11722feac4e706886)

Source commit: 72391ed6b18360e43e585e7f119425c43f8d37a3

source/resource/TextsWin1.rc

@@ -558,7 +558,7 @@ BEGIN
         ABOUT_FILEMANAGER_COPYRIGHT, "Copyright © Ingo Eckel"
         ABOUT_JCL, "JEDI Code Library (JCL) %s"
         ABOUT_JCL_URL, "https://jcl.delphi-jedi.org/"
-        ABOUT_PNG, "PngComponents 1.4.1"
+        ABOUT_PNG, "PngComponents 1.7"
         ABOUT_PNG_COPYRIGHT, "Copyright © Uwe Raabe and Martijn Saly"
         ABOUT_PNG_URL, "https://github.com/UweRaabe/PngComponents"
         EDITOR_SAVING, "Saving..."