feat: expand rux info command with package metadata and local execution

[BibhabenduMukherjee]

Description

This PR expands the capability of the rux info command to support additional package metadata fields, handles reading/writing them to/from Rux.toml, and adds support for running rux info without arguments to describe the local directory's package.

Changes

1. Manifest Metadata Expansion:

   • Added five optional metadata fields to the Package struct in Manifest.h: description, authors, license, repository, and homepage.
   • Updated Manifest::Load in Manifest.cpp to parse these fields from the [Package] section.
   • Updated Manifest::Save in Manifest.cpp to serialize these fields back to the TOML file if they are populated.

2. CLI info Local Folder Fallback:

   • Updated Cli::RunInfo in UtilityCmd.cpp so that if no package name argument is passed, it traverses the directories upward to find and load a local Rux.toml manifest.

3. Output Formatting:

   • Aligned the text output of the metadata fields for clean console presentation.
   • Added serialization support for these fields in --json mode.

Verification & Testing

1. Local Package Run:
   Run rux info inside a package folder without arguments. It will locate the local manifest and display details.
2. Metadata Fields:
   Add description, authors, or license fields to a Rux.toml and run:

   rux info
   rux info --json

[pascalecu]

I approve this PR, however right now we're not allowing any more features since we're focusing on bug fixes for the upcoming 0.3.1. I'll merge this next cycle.