reduced usage of ifdef for HAVE_MAGICS

Reduction of #ifdefs in Maggraph When HAVE_MAGICS is not defined we now create the init, run and close functions that contain an error message. Otherwise we create the actual routines. This only requires a single ifdef

requested review from @m214003

assigned to @m300433

added 1 commit

• 5c02b8df - replaced header define with library define

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added 8 commits

• 5c02b8df...b0e12b46 - 6 commits from branch develop
• b2d247d1 - reduced usage of ifdef for HAVE_MAGICS
• 184fe6e2 - replaced header define with library define

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enabled an automatic merge when all merge checks for 184fe6e2 pass

merged