Upstream changes:
Many performance improvements
Error message improvments
Lots of refactoring
Most of the JQValue interface changes in gojq fork had to be reworked but
resultet in a much nicer and cleaner changeset.
fq changes:
Assignment to JQValue (like a decode value) now shallowly converts the value into
a jq value before assigning. Was a bit hacky as it was and this makes JQValue
behave more like real jq values. This also fixes some advanced indexing issues.
Actual custom path updates will be something for the future.
Rename buffer to binary. Still some work left what to call buffer/binary in decode code.
Document decode value and binary type
Fix proper unit padding for tobytes and add still undocumenated extra padding argument.
Add some additional binary tests
