allow extensions to override Access2Base

In particular, this allows users or administrators to upgrade Access2Base by installing the extension version of it.

Change-Id: I1650e5beced0fd168afa029dbac2025e2fa16e1f
Reviewed-on: https://gerrit.libreoffice.org/9756Reviewed-by: Lionel Elie Mamane <lionel@mamane.lu>
Tested-by: Lionel Elie Mamane <lionel@mamane.lu>

desktop/source/deployment/registry/script/dp_script.cxx

@@ -346,7 +346,8 @@ lcl_maybeAddScript(
             //same id
             if (sOriginalUrl.match("vnd.sun.star.expand:$UNO_USER_PACKAGES_CACHE")
                 || sOriginalUrl.match("vnd.sun.star.expand:$UNO_SHARED_PACKAGES_CACHE")
-                || sOriginalUrl.match("vnd.sun.star.expand:$BUNDLED_EXTENSIONS"))
+                || sOriginalUrl.match("vnd.sun.star.expand:$BUNDLED_EXTENSIONS")
+                || sOriginalUrl.match("$(INST)/share/basic/Access2Base/"))
             {
                 xScriptLibs->removeLibrary(rName);
                 bCanAdd = true;