add pipe support

[tomquas]

example:

sublime

$ python list_idx.py| subl

opens generated content in editor tab.

whereas with zed

python list_idx.py| zed
Traceback (most recent call last):
  File "/.../list_idx.py", line 12, in <module>
    print(result.result_set)
BrokenPipeError: [Errno 32] Broken pipe

[SomeoneToIgnore]

It's possible, if you have the Zed CLI installed:

https://zed.dev/docs/getting-started?highlight=cli#cli

Use zed --help to see the full list of capabilities

Reading from stdin: ps axf | zed -