feature/#127_Add_central_init_to_image
Add protected class that takes care of initialising freeimage once upon first use and deinitializing it at the end of the program
closes #127
Additional reviewers: @jwendt, @ademiralp
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Add protected class that takes care of initialising freeimage once upon first use and deinitializing it at the end of the program
closes #127
Additional reviewers: @jwendt, @ademiralp