X point geometries (!27) · Merge requests · Matthias / feltor

Changes:

removed trailing whitespaces in inc and geometries files
merged optimized sparseblockmat kernels and thus added avx instruction set in default.mk
renamed Handle class to ClonePtr
fixed memory bug caused by Tensor class design
new file inc/geometries/conformalX_elliptic_b
corrected faulty eule namespace in diag programs
specific updates in inc/geometries due to new paper

X point geometries