Added(SAFAPI): Add last_modified attribute for termux-saf-stat and termux-saf-ls

Co-authored-by: @BryanJacobs <b@q3q.us>
Co-authored-by: @agnostic-apollo  <agnosticapollo@gmail.com>

Author: BryanJacobs

app/src/main/java/com/termux/api/apis/SAFAPI.java

@@ -288,8 +288,14 @@ private static void statDocument(JsonWriter out, Context context, Uri uri) throw
             }
 
             out.name("uri");
-
             out.value(uri.toString());
+
+            index = c.getColumnIndex(DocumentsContract.Document.COLUMN_LAST_MODIFIED);
+            if (index >= 0) {
+                out.name("last_modified");
+                out.value(c.getLong(index));
+            }
+
             if (mime != null && !DocumentsContract.Document.MIME_TYPE_DIR.equals(mime)) {
                 index = c.getColumnIndex(DocumentsContract.Document.COLUMN_SIZE);
                 if (index >= 0) {