Add lightning-flash

[weiji14]

Crossref Lightning-Universe/lightning-flash#659.

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[conda-forge-linter]

Hi! This is the friendly automated conda-forge-linting service.

I wanted to let you know that I linted all conda-recipes in your PR (recipes/lightning-flash) and found some lint.

Here's what I've got...

For recipes/lightning-flash:

• Recipe maintainer "AddYourGitHubIdHere" does not exist

[weiji14]

@Borda and @ethanwharris, are you both ok to be listed as maintainers for the lightning-flash conda recipe? I can also add others in.

Suggested change

	- AddYourGitHubIdHere
	- Borda
	- ethanwharris
	- weiji14

[conda-forge-linter]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipes/lightning-flash) and found it was in an excellent condition.

[weiji14]

@conda-forge/help-python, the Windows build is failing, because pytorch does not have Windows packages on the conda-forge channel (xref conda-forge/pytorch-cpu-feedstock#32, but there are win-64 packages on the pytorch channel). Is this ok though, since the package is for a no-arch build?

Solving environment: ...working... failed

Leaving build/test directories:
  Work:
 C:\Miniconda\conda-bld\work 
  Test:
 C:\Miniconda\conda-bld\test_tmp 
Leaving build/test environments:
  Test:
source activate  C:\Miniconda\conda-bld\_test_env 
  Build:
source activate  C:\Miniconda\conda-bld\_build_env 


Traceback (most recent call last):
  File "C:\Miniconda\lib\site-packages\conda_build\environ.py", line 804, in get_install_actions
    raise DependencyNeedsBuildingError(exc, subdir=subdir)
conda_build.exceptions.DependencyNeedsBuildingError: Unsatisfiable dependencies for platform win-64: {"pytorch[version='>=1.7']"}
##[error]Cmd.exe exited with code '1'.

[Borda]

@weiji14 maybe you can add pytorch channel 🐰
cc: @ethanwharris

[weiji14]

@weiji14 maybe you can add pytorch channel rabbit

I don't actually know how to add the channel tbh 🙃 The Windows failures might be acceptable though, since this is a cross-platform noarch build (see #13866 (comment)).

[dopplershift]

We can ignore the failing Windows build (due to missing dependency) since this is noarch.