Tree directory modified. Added : cc-file-functions.sh and a few set of
functions. Added : toolchain directory. Contains descriptions for
available toolchains. Every toolchain is described in is own directory.
Sample for arm-linux-gnueabi toolchain (Raspi targetted) available.
Toolchain configuration stands in toolchain/global-config.sh. Every soft
config is stored in soft-specs.sh (unimplemented yet).