Create a new repo for xslq:conf so it can be used with any schematron

[mricaud]

This would probably involve to change the namespace, that's why it should be done before Release 1.0

Notes : use PI instead of ignore attribute, cf. https://www.linkedin.com/pulse/taking-schematron-quickfix-next-level-octavian-nadolu/?articleId=6602460611286716416