first version of localbuild integrated with depanneur

first version of localbuild integrated with depanneur

Available features:
* multiple packages build
* parallel build with multiple threads
* dependency build automaticlly
* local repo generated

Already implemented depanneur options:
* --clean, --clean-once, --overwrite
* --incremental, --keepgoing, --no-configure
* --exclude, --exclude-from-file
* --thread
* --binary-list
* --debug

Usage Example:
$ mkdir tizen-packages
$ cp package1 package2 package3 ... tizen-packages/
$ gbs localbuild -A ia32 tizen-packages # build all packages under tizen-packages
$ cd tizen-packages/
$ gbs localbuild -A ia32 # build all packages under current dir
$ gbs localbuild -A ia32 --overwrite --include-all
$ gbs localbuild -A i586 --threads=2
$ gbs localbuild -A i586 --threads=2 --exclude=dlog --exclude=eglibc
$ gbs localbuild -A i586 --threads=4 --binary-list=/path/to/pkgs.list
$ cd package1/
$ gbs localbuild -A i586 --incremental # only support build one package

Change-Id: I8e214601cc3021c33c8a95b00477bd18546e05c3