simplified implementation of a version control system, inspired by git.

implemented features:

• initialize a repository (init)
• add files to staging area (add)
• commit changes (commit)
• view commit history (log)
• check repository status (status)

todo:

• implement diff functionality
• add branching support
  • create branches
  • switch between branches
  • merge branches
• implement .gitignore functionality
• improve add command to support multiple files and directories
• add reset command to unstage changes or move head