[[ Bug 12195 ]] Implement data-preserving version of MCConcat
[[ Bug 12195 ]] Ensure DataRefs are compared as data
[[ Bug 12195 ]] Speed up equality testing for empty vs non-empty
[[ Bug 12195 ]] Ensure data is preserved when putting data before / after
[[ Bug 12195 ]] Ensure reading from file/process returns a DataRef when opened in binary mode
Merge pull request #838 from runrevali/bugfix-12195

Bugfix 12195