[RFC] Change installation for extra packages

[akihironitta]

What does this PR do?

We recently divided requirements into several wrt data types (e.g. pip install lightning-flash[image]), but I don't think it's intuitive to users as I left a comment in #215 (comment).

TODO

I'll update the docs and fix failing CI (if there is) once I get positive comments from core members.

• Fix CI
• Update installation docs

Description of the changes

Before

dev      = vision + tabular + text + image
dev-test = dev + test
all      = dev + docs

After

# for users
all = vision + tabular + text
# for Flash contributors/developers
dev = all + tests + docs

Before submitting

• [RFC] Was this discussed/approved via a Github issue? (no need for typos and docs improvements)
• Did you read the contributor guideline, Pull Request section?
• Did you make sure your PR does only one thing, instead of bundling different changes together?
• Did you make sure to update the documentation with your changes?
• [n/a] Did you write any new necessary tests? [not needed for typos/docs]
• Did you verify new and existing tests pass locally with your changes?
• If you made a notable change (that affects users), did you update the CHANGELOG?

PR review

• Is this pull request ready for review? (if not, please submit in draft mode)

Anyone in the community is free to review the PR once the tests have passed.
If we didn't discuss your PR in Github issues there's a high chance it will not be merged.

Did you have fun?

Make sure you had fun coding 🙃

[akihironitta]

@tchaton @Borda @ethanwharris I'd love to know your thoughts on this change.

[ethanwharris]

@akihironitta This looks great 😃 definitely more intuitive than before

[codecov]

Codecov Report

Merging #346 (bc98837) into master (9c5dbd7) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #346   +/-   ##
=======================================
  Coverage   88.82%   88.82%           
=======================================
  Files          80       80           
  Lines        4143     4143           
=======================================
  Hits         3680     3680           
  Misses        463      463           

Flag	Coverage Δ
unittests	88.82% <ø> (ø)

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[Borda]

Just be aware that this will install only packages from pypi, no with given path/url

[justusschock]

@Borda not sure about urls but afaik you can definitely do pip install "./some/path[images]"

you just need the quotation marks :)