Version 1

This is the initial release of cuFHEpp, the TFHEpp flavor successor of cuFHE. I decided to remove the fork relatuonship with the original cuFHE and change the name because the original cuFHE have long been dead and I found that extending its NTT codes to modern flexible manner is quite difficult. In cuFHEpp, I replaced it by GPU-FFT and GPU-NTT. If you carefully examine the code you may be able to identifu some codes orginated from cuFHE, but I believe that the large part of the code is rewrote or removed by me. Hence, I also decided to change the LICENSE file to Apache 2.0 with my name to match with the license of TFHEpp, GPU-FFT and GPU-NTT.
This version is about two times faster than the last release of cuFHE.