Update object curly newline rule to force line breaks

[allanchau]

@smebberson What do you think about updating the linter to force new lines within objects. I think this would improve readability in git when changing elements within the object.

module.exports = {
    createMemberInRecurly,
};

// Bit harder to see what has changed in git because the whole line is highlighted as well as the change
module.exports = { createMemberInRecurly };