Add Progress Reporting Capabilities

[thelovekesh]

Currently, the package does not expose any mechanisms to report progress during archive creation. Adding support for progress reporting would be highly valuable, especially when:

• Packing large datasets or directories

• Integrating with tools or registries that benefit from status feedback

Proposed data points to expose during tarball creation:

• Files being included (file names or paths)

• Packed size (archive size on disk)

• Unpacked size (sum of source file sizes)

• Total file count

These enhancements would make the library more flexible and transparent for downstream tooling and user-facing applications.