Added algorithm files (in progress).  Refs #9326.

Also the modified cmake.
Update ChopEventFilters.cpp
Fixed some coding errors. Refs #9326.
Added unit test.  Refs #9326.

Init unit test file;
Modified CMake;
Reformat .h and .cpp files
Update ChopEventFiltersTest.h
Refs #9326.  Added 1 more unit test.
Solved a namespace issue. Refs #9326.
Refs #9326.  Fixed errors in unit tests.
Merge branch 'feature/9326_chop_event_splitters' into develop