GSoC-2021 Week-9: vrp_vroom

[krashish8]

Changes proposed in this pull request:

• Made changes in SQL, code, doc, docqueries, pgTAP tests for new signature.
• Made changes in README and CMakeLists.txt
• Added more pgTAP tests.
• Modified sampledata (vroomdata), and added constraints.
• Updated Documentation:
  • vroom-category: https://krashish8.github.io/GSoC-pgRouting/dev/en/vroom-category.html
  • sampledata: https://krashish8.github.io/GSoC-pgRouting/dev/en/sampledata.html
  • vrp_vroom: https://krashish8.github.io/GSoC-pgRouting/dev/en/vrp_vroom.html
  • vrp_vroomJobs: https://krashish8.github.io/GSoC-pgRouting/dev/en/vrp_vroomJobs.html
  • vrp_vroomShipments: https://krashish8.github.io/GSoC-pgRouting/dev/en/vrp_vroomShipments.html