tweaks to .zosattributes

Author: pcoop

src/api/BundleContent/Bundle.ts

@@ -245,12 +245,18 @@ export class Bundle {
     }
 
     const contents = "" +
+          "#z/OS File Attributes Document\n" +
+          "#-----------------------------\n" +
+          "# This document specfies the encodings for the files within\n" +
+          "# the project in a form that is compatible with the\n" +
+          "# 'Zowe files upload dir-to-uss' command.\n" +
+          "#\n" +
           "# Don't upload node_modules\n" +
           "node_modules -\n" +
           "# Don't upload things that start with dots\n" +
           ".* -\n" +
           "\n" +
-          "# Upload images in binary\n" +
+          "# Upload the following file types in binary\n" +
           "*.jpg binary binary\n" +
           "*.png binary binary\n" +
           "*.gif binary binary\n" +