Changes

advance_xp2_xpyp with explicitly managed memory (#1086)

* GPUizing most of advance_clubb_core

* GPUizing most of advance_wp2_wp3 based off Supreeths openacc branch

* Cleanup and small fixes.

* Converting data statement to declare statement to return the return.

* Small changes to prevent data copies

* Initial advance_xp2_xpyp GPUization, adapted from Supreeth's branch, clubb_openacc, to work without managed memory.

* Small cleanup

* Tweaks to reduce data copies

* Small change

* More GPUization and some cleanup

* Final little fixes

* Removing magic logicals

advance_windm_edsclrm with explicitly managed memory (#1087)

* Initial commit for advance_windm_edsclrm adapted from Supreeth's branch

* Final fixes

* Accidentally undid fix

* Returning returns