Created reef-examples-clr
 * Added a new submodule `reef-examples-clr`
 * Moved the CLR examples to that new module
 * Removed the CLR examples from `reef-examples`
update retainedEvalCLR files location
Merge pull request #790 from Microsoft-CISL/weimer_yingda_clr_examples

update retainedEvalCLR files location
Merge branch 'master' of github.com:Microsoft-CISL/REEF into weimer_clr_examples
Merge branch 'weimer_clr_examples' of github.com:Microsoft-CISL/REEF into weimer_clr_examples
Merge branch 'master' of github.com:Microsoft-CISL/REEF