gita add TASK before SUBTASK copy package

Previously only */Cargo.lock was matched (one level deep).
Projects like HuggingFace safetensors/tokenizers have
Cargo.lock at bindings/python/Cargo.lock (two levels deep).
Use find to search recursively, and compute the relative
path back to vendor directory dynamically.

faketty() runs command in a pseudo-tty via script(1) to preserve
colored output through pipes.

stripcolors() removes ANSI color codes and OSC 8 hyperlinks from
input for clean log files.

Removed colorify() which required csed and was less effective.