## Changes
This PR:
1. Adds the export-dir command
2. Changes filer.Read to return an error if a user tries to read a
directory
3. Adds returning internal file structures from filer.Stat().Sys()
## Tests
Integration tests and manually
## Changes
Some of the commands do not support prompts, for example `workspace
get-status` but we were wrongly suggesting customers some option.
Quick fix for this is not to provide prompts for these known commands.
Note: it uses a method from this PR in Go SDK
https://github.com/databricks/databricks-sdk-go/pull/416
## Tests
Running `workspace get-status`
Before
```
andrew.nester@HFW9Y94129 multiples-tasks % ../../cli/cli workspace get-status
Error: Path () doesn't start with '/'
```
After
```
andrew.nester@HFW9Y94129 multiples-tasks % ../../cli/cli workspace get-status
Error: accepts 1 arg(s), received 0
```
## Changes
Do not prompt for List methods
## Tests
Running
```
cli workspace list
```
Before
```
cli workspace list
Error: Path () doesn't start with '/'
```
After
```
cli workspace list
Error: accepts 1 arg(s), received 0
```
shreyas-goenka
Andrew Nester