Renamed all project files, namespaces, classes, and references from AzuresPackager to BrikPackager for consistency and rebranding. Updated CLI usage messages and publish script to reflect the new name.
Introduces a new Cli.cs file providing a command-line interface for packing and unpacking with AzuresPackager. Updates project metadata in AzuresPackager.csproj, including package version, output type, and dependency version bump for SharpCompress. Also updates publish.ps1 to use the new version and skip duplicate package uploads.
