Add BUILD_PATH env variable to customise naming of production folder

[lucafalasco]

Would be nice to change the path of the production folder, in my use case we have to create different folders at build time for each different language.
Example:

build/
-- app.js
-- index.html
-- assets/
-- fr/
---- app.js
---- index.html
-- de/
---- app.js
---- index.html

BUILD_PATH=build/fr

accurapp/packages/webpack-preset-accurapp/index.js

Line 300 in 7c87d0d

path: path.resolve('./build'),

[lucafalasco]

Also maybe this line should be reverted?

d432792#diff-9b7d14c4a3da62774803e2fe1499ba9cff536bfd18e4adf22a46b5e8012f4aa7L30-R29

It would work perfectly if reading the path from config.output.path

[marcofugaro]

Oops didn't realize that was an issue, I'll put back the config.output.path thing.

[marcofugaro]

Done.

[lucafalasco]

@marcofugaro nice, although I'm going to reopen this for the main issue which is supporting a BUILD_PATH env variable ok?

[marcofugaro]

Sure, is setting it from the webpack.config.js not enough?