Hydrilla

internationalize using Babel

this commit also makes the sdist tarball generated by setuptools REUSE-compliant

bump schemas subrepo to a8442778ff400fd9d50cac7944b491c7d641df1f

fix handling of --index-json option

add show_default=True to --srcdir option

use parameters to click.Path instead of validating paths manually

make resource dependency specifier an object

change file path format

From now on we'll be using format 'file/sha256/' instead of 'file/sha256-'.

include new schemas in package and in tests

fix typing mistake i tests

facilitate for including other schemas in submodule and expose them to other packages