Revert "src/ahot/Example deleted, as task of original clone.  Blanks cleaned up in CMakeLists.txt"

This reverts commit 15e6ff5c6f4cfd8baf1536cfb3aa2ac26443b132.

This is to undo the removal of src/ahot/Example.
Just blanks cleaning.
Merge remote-tracking branch 'upstream/develop' into develop

Trying to get all changes from upstream.
Merge pull request #505 from Tech-XCorp/develop

Restoring src/ahot/Example
stubbed out bin function
added pointwise linear interp
started some tests
wrote some pointwise linear collapse tests
Added bins theory manual.
added monotonically decreasing functionality
Merge pull request #506 from scopatz/omcds

Pointwise Linear Group Collapse