Added Buildfile for Tar and included it as dependency in core/Buildfile

Will use latest Tar version 1.28

core/Buildfile

@@ -45,5 +45,6 @@ depends=(acl
          sed
          sysfsutils
          sysvinit
+         tar
          usbutils
          wget)

tar/Buildfile

@@ -0,0 +1,19 @@
+# Description: GNU Tar
+# URL: http://www.gnu.org/software/tar/
+# License: GPL
+
+name=tar
+version=1.28
+release=1
+source=(http://ftp.gnu.org/gnu/tar/$name-$version.tar.gz)
+
+build() {
+   cd $name-$version
+
+   ./configure --build=$BUILD \
+               --host=$HOST \
+               --prefix=/usr
+
+   make -j $JOBS
+   make DESTDIR=$PKG install
+}