Upgrade to pyproject.toml build file system

[ShravanTata]

PEP 517 introduces new standards for packaging python packages, and it is essential to have a pyproject.toml file at the root of the package. Use of commands such as python setup.py build are deprecated and should not be run.

The following links outline the steps to modernize the build system

• modernize-setup-py-project
• writing-pyproject-toml

Tasks

• farms-core
• farms-network
• farms-muscle
• farms-sim
• farms-mujoco
• farms-bullet