The foss/2014b toolchain

This is the VSC foss 2014b toolchain. The foss toolchain should be added to easybuild in order to test these configs.
you should add `numactl` as a dependency here, since it enhances `hwloc`:

```python
dependencies = [('numactl', '2.0.9')]

configopts = "--enable-libnuma=$EBROOTLIBNUMA"
```