Adding support for tabs when defining arrays using hyphen character

[mryellow]

Related to #251. Tab characters are misinterpreted when included in arrays which are defined with a hyphen.

Works with spaces:

With tabs results in Error: YAMLException: bad indentation of a sequence entry:

[mryellow]

Worth noting that this combination of spaces and tabs also works.

[erunion]

👋 We're no longer actively maintaining this library but if you would like to take an attempt at fixing this we'd happily accept a pull request.

[mryellow]

Will see how annoying it gets ;-)