Added C-nature project files.

Signed-off-by: Jay Jay Billings <billingsjj@ornl.gov>
Used the new project layout afforded by the Github move to unify the
build directories into one build. Moved the org.eclipse.ice.build
project up a directory and cleaned up the new build file a bit.

Signed-off-by: Jay Jay Billings <billingsjj@ornl.gov>
Ignored some workspace directories created by the tests. Added the
LICENSE file to the feature rootfiles directory to fix a build bug
(although it should be there anyway) where Tycho would fail without the
rootfiles directory present. Added GlazedLists to the target.

Signed-off-by: Jay Jay Billings <billingsjj@ornl.gov>