patx/gitman

#3 should use venv instead, some distros dont like pip interacting with system packages (merged from nova/gitman branch main into branch main)
#2 Introduce an upload feature for importing existing large repos, allow repo.bundle upload up to 1GB (merged from patx/gitman branch feature/large-repo-upload into branch main)
#1 Add Pages (static file serving from repos) (merged from patx/gitman branch feature/pages into branch main)