* initial attempt at using pkgconf for bsd
* update pkgconf path
* fix adding pkg-config dep
* replace set_env with add_env
* no underscore
* update adding env var
* add imagemagick package
* update xmake.lua
* update xmake.lua to default to using pic
* add bzip2 and libxml2 deps
* add lzma dep, disable djvu, jbig, and openmp
* add freetype and fontconfig deps
* create config options for deps, add each dep as needed
* remove some deps that couldn't be disabled, move more deps into some config options, disable deps that aren't installed
* add fix for threading, fix with -> without, set some sensible default config options (major used image formats)
* disable threading by default, but if it's enabled add the pthread syslink
* disable lcms, make configs entry look better
* add raw config option, disabe hdri
* replace libjpeg-turbo with libjpeg
* update link order
* I think I added the includedirs wrong
* nope I broke it so reverting
* rearrange link order
* disable lqr
* update with some of the reviews, remove bsd until pkg-config has bsd enabled
* update with review