Support full yaml 1.1 syntax

[reegnz]

I suggest that the plugin uses a yaml parser that supports the full yaml 1.1 syntax.
The current yamlbeans parser is incomplete and causes confusion when it's not able to parse a valid yaml file, or when it isn't capable handling some yaml tokens (like http://yaml.org/type/merge.html) and it fails silently.
An example use-case:
I use python tooling to validate and query yaml files: yamllint (https://github.com/adrienverge/yamllint) and yq (https://github.com/kislyuk/yq)
Both of those tools are capable of working with valid yaml files that the yamlbeans parser fails to do.

It would make sense to use a yaml parser for Java that actually supports the full extent of the 1.1 syntax to ensure compatibility with other tooling: https://bitbucket.org/asomov/snakeyaml

[reegnz]

This should also fix #55 once implemented.

[ryudice]

Are there plans to do this? being able to user anchors would save a lot of boilerplate that we have in our pipelines, which also makes them prone to inconsistencies.

[kyrofa]

Agh, I've been fighting this for way too long before finding this.