Antoine Stevan d0a83fec69
stdlib: add completion to help commands (#8799)
> **Note**
> waiting for
> - https://github.com/nushell/nushell/pull/8770
> - #8815

# Description
this PR adds a very basic completion support to the `help`
implementations of the `std`.

# User-Facing Changes
completion on all the `std help ...` commands, based on the names in
`$nu.scope.`

# Tests + Formatting
-  `toolkit fmt`
-  `toolkit clippy`
-  `toolkit test`
-  `toolkit test stdlib`

# After Submitting
```
$nothing
```
2023-04-10 10:59:57 +12:00
..
2023-04-06 07:34:47 +12:00
2023-04-05 13:12:01 -05:00
2022-02-07 14:54:06 -05:00

Nushell core libraries and plugins

These sub-crates form both the foundation for Nu and a set of plugins which extend Nu with additional functionality.

Foundational libraries are split into two kinds of crates:

  • Core crates - those crates that work together to build the Nushell language engine
  • Support crates - a set of crates that support the engine with additional features like JSON support, ANSI support, and more.

Plugins are likewise also split into two types:

  • Core plugins - plugins that provide part of the default experience of Nu, including access to the system properties, processes, and web-connectivity features.
  • Extra plugins - these plugins run a wide range of different capabilities like working with different file types, charting, viewing binary data, and more.