Added a pynacl to lib/ so that we can build our own pynacl during freezing

lib/nacl/src/libsodium/dist-build/android-mips.sh

lib/nacl/src/libsodium/dist-build/android-x86.sh

lib/nacl/src/libsodium/dist-build/emscripten.sh

lib/nacl/src/libsodium/dist-build/ios.sh

lib/nacl/src/libsodium/dist-build/msys2-win32.sh

lib/nacl/src/libsodium/dist-build/msys2-win64.sh

lib/nacl/src/libsodium/install-sh

lib/nacl/src/libsodium/libsodium.pc.in

lib/nacl/src/libsodium/libsodium.sln

lib/nacl/src/libsodium/libsodium.vcxproj

lib/nacl/src/libsodium/libsodium.vcxproj.filters

lib/nacl/src/libsodium/ltmain.sh

lib/nacl/src/libsodium/m4/ax_check_compile_flag.m4

lib/nacl/src/libsodium/m4/ax_check_link_flag.m4

lib/nacl/src/libsodium/m4/ld-output-def.m4

lib/nacl/src/libsodium/m4/libtool.m4

lib/nacl/src/libsodium/m4/ltoptions.m4

lib/nacl/src/libsodium/m4/ltsugar.m4

lib/nacl/src/libsodium/m4/ltversion.m4

lib/nacl/src/libsodium/m4/lt~obsolete.m4