Updates to elfwrite to handle more segments, new cfar configs typed out, and scons added to get-packages.

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mvee kernel module does not allow for overriding LD with alias directives, so use patchelf to modify the binaries for that purpose

Fix a bug in how noh.c works if the variant config file only specifies the number of variants but not the index (probabalistic mode)

Update non_overlapping_heap and non_overlapping_library to use a config file, as that functionality is easier to get early in the load process than environment variable handling. Change generate_mve_package (and related) to handle this appropriately. Change apache-gcc protect_apache.sh to show example of new configuration invokation.

Copy some changes from the nol version of this sort of stuff to the noh version - now handles file mappings as well. Only remaining unhandled mapping types are shared and fixed mappings, and it's likely possible to use something similar to the file mapping approach used here to do shared mappings.

Add ifdefs around debug statements, update the makefile to actually use the tests dir for the test target.

Improvments to noh - probabalistic randomization, improved robustness, mark extra pages as non-usable.

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get rid of these in the CGC version of get-peasoup-packages.sh

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