PSPLINE version 2.0.0-rc.5

• Fixed Makefile error for generating shared libraries
• Added a basic sample config file
• Added options to the PPPL config file

PSPLINE version 2.0.0-rc.4

Added CI with GitHub Actions

PSPLINE version 2.0.0-rc.3

Replaced EZCDF interface for NetCDF C with the official NetCDF Fortran 90 interface.

PSPLINE version 2.0.0-rc.2

Renamed precision_mod to psp_precision_mod

PSPLINE version 2.0.0-rc.1

First release candidate for PSPLINE 2.0 where version one is from the TRANSP repo. Major changes:

• Separate r4 and r8 versions of the routines are no longer supported, user can control precision when building the library; therefore the r8_ prefix on double precision PSPLINE routines has been removed
• Major reformatting of the code into Fortran 90 and rewriting to be mostly up to the 2008 standard
• Uses EZCDF for reading/writing NETCDF files; however, use of EZCDF is targeted for deprecation
• Default is to not use EZCDF and not support reading/writing NETCDF files
• czspline has been completely rewritten to use of the Fortran iso_c_binding intrinsic functions