Add departments table

Author: gedorinku

db/Schemafile

@@ -1,3 +1,4 @@
 require 'users.schema'
 require 'profiles.schema'
 require 'roles.schema'
+require 'departments.schema'

db/departments.schema

@@ -0,0 +1,4 @@
+create_table :departments, force: :cascade do |t|
+  t.string :name
+  t.string :short_name
+end