Add openmpi to the list of dependencies

Signed-off-by: Seyed Ali Ghasemi <info@gha3mi.com>

fpm.toml

@@ -25,6 +25,7 @@ source-form       = "free"
 forimage    = {git="https://github.com/gha3mi/forimage.git"}
 forcolormap = {git="https://github.com/vmagnin/forcolormap.git"}
 fortime     = {git="https://github.com/gha3mi/fortime.git"}
+openmp      = "*"
 
 [dev-dependencies]
 forunittest = {git="https://github.com/gha3mi/forunittest"}