tboudreaux:feature/mixedPolytrope implimented a fix to bring old style opat-core calls to the more up to date style. This change has been fast forwarded into main
The build system now passes compiler directives based on the mode being build. By default data is stored in the source root (and this is encoded into the compiled binary). However, if building in user mode then data is assumed to be at the meson install prefix data directory
gtest can provide a main function but something this might conflict if you just want to use the comparison macros. Added a new variable in the meson build system gtest_nomain_dep which brings in the macros but not the main function. This can be linked against without having to worry about main function conflicts.
we will use meson as the build system for this project. Added a rough outline of this which builds source, libraries, and links them to tests (along with the google test library for testing). meson will be setup and compiled with ./mk.
