Added Target create action

app/views/goals/_show_form.html.erb

@@ -1,4 +1,4 @@
-<%= fields_for 'target[goal_attributes]', goal do |ff| %>
+<%= fields_for 'goal', goal do |ff| %>
   <label><%= l(:field_goal) %><span class="required"> *</span></label>
   <%= ff.select :id,
     options_from_collection_for_select(@project.goals, :id, :name, goal.id),

app/views/goals/show.js.erb

@@ -0,0 +1,2 @@
+$('#goal-form').html('<%= j render partial: 'goals/show_form', locals: {goal: @goal} %>');
+$('input#target_effective_from').prop('disabled', <%= @goal.is_binding? %>)