* tools/ncl_keywords.py: ncl-mode dictionary update added.

Signed-off-by: Yakkala Yagnesh Raghava <hi@yagnesh.org>
* dict/ncl-mode: write generated new ncl keywords into dict/ncl-mode.

Signed-off-by: Yakkala Yagnesh Raghava <hi@yagnesh.org>