[feature] pypi -> conda mapper

[AlbertDeFusco]

Hi! Thank you for creating this plugin. This will really help my workflows.

In this PR I've used grayskull to translate pypi package names in pyproject.toml to conda package names. For example, given this pyproject.toml entry

[build-system]
build-backend = "hatchling.build"
requires = ["hatchling", "hatch-vcs>=0.3", "setuptools-scm>=7.1", "hatch-conda-build"]

[project]
requires-python = ">=3.9"
dependencies = [
    "requests==2.31.0",
    "Flask",
    "build",
    "art",
    "pydantic[email]<2"
]

the output meta.yaml will be

requirements:
  host:
    - python >=3.9
    - pip
    - hatchling
    - hatch-vcs >=0.3
    - setuptools-scm >=7.1
  run:
    - python >=3.9
    - requests ==2.31.0
    - flask
    - python-build
    - ascii-art
    - pydantic <2

Other modifications in this PR

• conda-build outputs are placed into ./dist/conda and you can install them using -c ./dist/conda
• testing for requirements translation, conda recipe content, and output builds

This addresses #3

[AlbertDeFusco]

Hi, @costrouc. Is there anything I can do to help get this approved and merged?