vrpr 0.1.0

First release.

• A tidy, pipe-friendly R interface to the ‘PyVRP’ vehicle routing solver. PyVRP’s high-performance C++ core is vendored and rewired through ‘cpp11’, with no ‘Python’ runtime dependency.
• Supports the capacitated VRP, time windows (VRPTW), heterogeneous fleets, multiple depots (MDVRP), prize-collecting (optional clients and mutually exclusive client groups), simultaneous pickup and delivery / backhaul, and multi-trip routes.
• read_vrplib() and read_solomon() read standard VRPLIB/TSPLIB and Solomon instances; plot() draws solutions with ‘ggplot2’.
• The solver is a faithful port of PyVRP’s iterated local search; objective and solution-quality parity with PyVRP is verified in tools/benchmark/.