* Refactor ordered_map into separate files
Separate json and xml, from the regular yaml.
Makes it possible to compile, without those...
* Refactor encoder and decoder creation
Use more consistent parameters vs globals
Return errors instead of calling panic()
* Allow build without json and xml support
json.Encoder and json.Marshal implicitly use HTMLEscape to convert
>, <, &, with \u003c, \u003e, \u0026. This behavior carries over
to yq, where chars will be escaped when outputting json but not when
outputting yaml.
This changeset disables this behavior via encoder.SetEscapeHTML(false).
Unfortunately there is no equivalent option for json.Marshal, so its
single usage has been replaced with an encoder (with escaping disabled).
