* Added support for ceil mode in AvgPool

* Added ceil mode to MaxPool

* remove extra semicolon

* Add more constructor variants to support pybind which seems to have issues with multiple optional arguments

* More constructor variants for AvgPool

* More constructor variants for MaxPool

* Style fix

* Avoid constructor delegation

* Revert "Avoid constructor delegation"

This reverts commit 8efd59127bc9a16bae93b3c6b67dbcccfa95648f.