fix schema for Array classes

[loriab]

Description

This will get us through Molecule, though perhaps it should be still more generic.

Changelog description

Status

• Code base linted
• Ready to go

[codecov]

Codecov Report

Merging #217 into master will decrease coverage by 0.18%.
The diff coverage is n/a.

[loriab]

a sample with Array

{'additionalProperties': False,
 'description': 'Facilitates the application of the simple transformation '
                'operations\n'
                '    defined by ``shift``, ``rotation``, ``atommap`` arrays '
                'and ``mirror``\n'
                '    boolean as recipe to the data structures\n'
                '    describing Cartesian molecular coordinates. Attaches '
                'functions to\n'
                '    transform the geometry, element list, gradient, etc. to '
                'the\n'
                '    AlignmentRecipe. When `mirror` attribute (defaults to '
                'False) active,\n'
                '    then molecular system can be substantively changed by '
                'procedure.\n'
                '\n'
                '\n'
                '\n'
                'Parameters\n'
                '----------\n'
                'shift : Array, Optional\n'
                '    Translation array (3,) for coordinates.\n'
                'rotation : Array, Optional\n'
                '    Rotation array (3, 3) for coordinates.\n'
                'atommap : Array, Optional\n'
                '    Atom exchange map (nat,) for coordinates.\n'
                'mirror : bool, Default: False\n'
                '    Do mirror invert coordinates?',
 'properties': {'atommap': {'description': 'Atom exchange map (nat,) for '
                                           'coordinates.',
                            'items': {'multipleOf': 1.0, 'type': 'number'},
                            'title': 'Atommap',
                            'type': 'array'},
                'mirror': {'default': False,
                           'description': 'Do mirror invert coordinates?',
                           'title': 'Mirror',
                           'type': 'boolean'},
                'rotation': {'description': 'Rotation array (3, 3) for '
                                            'coordinates.',
                             'items': {'type': 'number'},
                             'title': 'Rotation',
                             'type': 'array'},
                'shift': {'description': 'Translation array (3,) for '
                                         'coordinates.',
                          'items': {'type': 'number'},
                          'title': 'Shift',
                          'type': 'array'}},
 'title': 'AlignmentMill',
 'type': 'object'}

[dgasmith]

Oh good the __modify_schema__ PR went through. I remember seeing it, but didn't track its progress in Pydantic.