Shorten project structure

[hugolpz]

Related to #80. Suggestion. Mainly, move the core codes up so it is more visible.
The crawlers are kept into their own folder.

• Reoganize project structure from :

corpuscrawler
├─ README.md
├─ LICENSE
├─ LICENSE.md
├─ CONTRIBUTING.md
├─ corpuscrawler
└─ Lib
   └─ corpuscrawler
      ├─ *.py : utilities
      └─ crawl_{iso}.py : crawlers

to

corpuscrawler
├─ README.md
├─ LICENSE
├─ LICENSE.md
├─ CONTRIBUTING.md
├─ corpuscrawler
├─ *.py : utilities
└─ crawlers
   └─ crawl_{iso}.py : crawlers

Would such changes disturb some complementary toolchain ?

[hugolpz]

Hello @sffc . I noticed you made some py change 10adaec and are active on this project, so allow me to cc you on this minor issue.

[sffc]

The project is currently structured as a PIP module, and it should stay a PIP module. However I would support reorganizing the utilities and crawlers into separate directories, but more along the lines of:

corpuscrawler
├─ README.md
├─ LICENSE
├─ LICENSE.md
├─ CONTRIBUTING.md
├─ corpuscrawler
└─ Lib
   └─ corpuscrawler
      ├─ util
      |   └─ *.py: utilities
      └─ crawlers
          └─crawl_{iso}.py : crawlers

[hugolpz]

This would add clarity yes. This current project lacks clear on-boarding manuals and pointers. A clean structure splitting the few utils from the 1000+ crawlers files would be an improvement for clarity and on-boarding.