fix(extract-fields): Sometimes, abstract item is not a string ...

But can be a number.

feat(extract-fields): Add doi field

refactor: Use redirection instead of FileLoad and FileSave

feat: Take the current directory as location

feat: Take generic files as input and output ...

Remove -50 in the file names

feat(extract-field): Concat addresses & reprint_addresses into aff

feat(extract-fields): Join all parts of an abstract ...

Make the abstract a string

fix: Chaque notice a un abstract, et c'est une chaîne

feat: First commit