Add Command to List Plugins in a Remote Repository

[tareknaser]

Description

This pull request introduces a new command to coffee, allowing users to list plugins in a remote repository.

Example:

To list plugins in a remote repository, simply run:

coffee remote <repository_name> --plugins

Changes

• [x] Added a new HTTP endpoint to handle the command.
• [x] Implemented test cases to ensure the functionality is reliable.
• [x] Documented the new command and its usage.

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[vincenzopalazzo]

What happens if I do not specify --plugins?

[tareknaser]

What happens if I do not specify --plugins?

fails, clap handles that because of requires here

#[arg(short, long, action = clap::ArgAction::SetTrue, requires = "remote-name")]
plugins: bool,
#[arg(
    requires = "plugins",
    name = "remote-name",
    help = "The name of the remote repository"
)]
name: Option<String>,

the output is

% coffee remote lightningd          
error: the following required arguments were not provided:
  --plugins

Usage: coffee remote --plugins <remote-name>

For more information, try '--help'.

[vincenzopalazzo]

fails, clap handles that because of requires here

Without a flag, we can print the information about the repository.

We already do it inside the coffee remote list, maybe we can return the same result but with one single item (that is the repository passed by name?