Added generateESM flag to odata generator (#2306)

Author: BrigittaK307

docs-js/features/odata/generate-odata-client.mdx

@@ -114,6 +114,7 @@ Run `generate-odata-client --help` for additional options.
 | `--verbose`                                   |         `false`         |  By default, only errors, warnings and important info logs will be displayed. If set to true, all logs will be displayed.                                                                                                                                                                                                                                           |
 | `--skipValidation`                            |         `false`         |  Generation will stop if objects need renaming due to non-unique conditions or conflicts with certain SDK reserved keywords (e.g. `Entity`, `Service`, etc.). If you enable this option, conflicts are resolved by appending postfixes like '\_1'"                                                                                                                  |
 | `-c`, `--config`                              |            -            | Set the path to the file containing the options for generation. If other flags are used, they overwrite the options set in the configuration file. If a directory is passed, a `config.json` file is read from this directory.                                                                                                                                      |
+| `--generateESM`                               |         `false`         | Generate ESM compatible code.                                                                                                                                                                                                                                                                                                                                       |
 
 ## Generate a Client Programmatically