erfc partial support

[juanlucasrey]

This implementation has been tested and working with:

-tensor_eval
-tape-less forward order 1
-fov_forward
-zos_forward + fos_reverse

in particular it has NOT been implemented with CUDA, since I cannot it test at the moment.

also, the "(int*)" changes are to avoid clang warnings.

Also worthy of notice, I had to add erfc_op at the end in ADOL-C/src/oplate.h. If I add it right after erf_op, the build fails.

[TimSiebert1]

Also worthy of notice, I had to add erfc_op at the end in ADOL-C/src/oplate.h. If I add it right after erf_op, the build fails.

The last commit fixes this. I don't know why those numbers are there, but I updated them to the current order and then it builds.

[TimSiebert1]

Apart from the comment, looks good. Thank you very much!

Could you provide us the tests? I would like to add them to the boost-test file.

[juanlucasrey]

Apart from the comment, looks good. Thank you very much!

Could you provide us the tests? I would like to add them to the boost-test file.

I tested with my own repo. I have not tried to build with boost yet, so I have not ran the test suite. I can look into it.