Move '3proxy-win32' to 'packages'.
3proxy-win32: Add a package function.
Move '3proxy' to 'packages'.
3proxy: Add package and prepare functions.
Move '4suite' to 'packages'.
4suite: Add prepare and package functions.
Move 'admid-pack' to 'packages'.
admid-pack: Fix $pkgver. Add pkgver function. Add package function.
Move 'aesfix' to 'packages'.
aesfix: Clean up a bit.
Move 'aeskeyfind' to 'packages'.
aeskeyfind: Clean up a bit.