Repeat blocks once all are consumed

Fixes #415

Author: bruno-f-cruz

src/Extensions/SolveBlockTransitions.bonsai

@@ -711,6 +711,9 @@
             <Expression xsi:type="Combinator">
               <Combinator xsi:type="rx:Concat" />
             </Expression>
+            <Expression xsi:type="Combinator">
+              <Combinator xsi:type="rx:Repeat" />
+            </Expression>
             <Expression xsi:type="WorkflowOutput" />
           </Nodes>
           <Edges>
@@ -723,6 +726,7 @@
             <Edge From="8" To="9" Label="Source1" />
             <Edge From="9" To="10" Label="Source1" />
             <Edge From="10" To="11" Label="Source1" />
+            <Edge From="11" To="12" Label="Source1" />
           </Edges>
         </Workflow>
       </Expression>