Antoine Stevan 79359598db
add table -> table to into datetime (#9775)
should close https://github.com/nushell/nushell/issues/9774

# Description
given the help page of `into datetime`, 
```
Parameters:
  ...rest <cellpath>: for a data structure input, convert data at the given cell paths
```
it looks like `into datetime` should accept tables as input 🤔 

this PR
- adds the `table -> table` signature to `into datetime`
- adds a test to make sure the behaviour stays there
2023-07-23 20:14:51 +02:00
..
2023-06-18 15:27:57 +12:00
2023-04-05 18:36:00 -05:00
2023-07-14 15:20:35 +12:00
2023-07-12 00:00:31 +02:00
2023-07-14 15:20:35 +12:00
2023-07-14 15:20:35 +12:00
2023-07-15 00:04:22 +03:00
2023-07-14 15:20:35 +12:00