add SplitCHParsed and CHParsed (#3356)
Add interface, register kernels (#3356)
new tests that don't depend on marmot stuff (#3356)
Merge pull request #3468 from dschwen/chparsed_3356

add SplitCHParsed and CHParsed
Merge commit '4287c1cfb6f45d4f6c48fd05cd0ca602a79ccda8'