register_csv allow space in table_path

**Describe the bug**
table_path when using:
```
context.register_csv
```
does not support spaces in path.

**To Reproduce**
```
context = SessionContext::new();

context
.register_csv("testing", "/folder/test folder/testing.csv", CsvReadOptions::new())
.await
```

**Expected behavior**
function to work as it does for paths without spaces.
