Old Catch2 bug blocking Mac M1 install

[nicksamps]

Issue Description

The project won't build for me because of an old version of Catch2 that is being used.

Steps to Reproduce (Bugs only)

1. Follow steps to build ktools (either from ktools readme or just do pip install oasislmf) on a Mac with the M1 chip.

Similar issue here CoatiSoftware/Sourcetrail#1185

Fix

I got make install to work by replacing catch.hpp with the updated version here https://github.com/catchorg/Catch2/releases/tag/v2.13.7.

The commit that fixed Catch2 can be found here catchorg/Catch2@a25c1a2

Version / Environment information

Mac OSX using M1, latest version of ktools

Example data / logs

Error:

  ./../include/catch.hpp:5485:75: note: expanded from macro 'CATCH_BREAK_INTO_DEBUGGER'
      #define CATCH_BREAK_INTO_DEBUGGER() if( Catch::isDebuggerActive() ) { CATCH_TRAP(); }
                                                                            ^
  ./../include/catch.hpp:5464:34: note: expanded from macro 'CATCH_TRAP'
      #define CATCH_TRAP() __asm__("int $3\n" : : ) /* NOLINT */
                                   ^
  <inline asm>:1:2: note: instantiated into assembly here
          int $3
          ^
  1 error generated.
  make[3]: *** [main.o] Error 1
  make[2]: *** [all-recursive] Error 1
  make[1]: *** [all-recursive] Error 1
  make: *** [all] Error 2
  Ktools build failed.

[hchagani-oasislmf]

Fixed by PR #253. The header file catch.hpp was only being used by the kunit testing stub. The removal of this stub and the header file has solved the issue.