Refactor insertControlFlowEdges() to handle edges safer

Change the way to retrieve root nodes in the ControlFlowModelingStage

Remove unused methods

Introduce constants for node dimensions to avoid using magic numbers

Remove an unused method

Remove unnecessary filters of resource nodes by call graph

Update a comment

Remove misunderstand implementations

Remove future work classes

Merge remote-tracking branch 'origin/commonToControlFlowAndDependencyModelings' into integrateControlFlowGraphIntoLatest ...

# Conflicts:
#	AlgebraicDataflowArchitectureModel/src/application/simulator/InputEventCellEditor.java
#	AlgebraicDataflowArchitectureModel/src/generators/CodeGeneratorFromDataFlowGraph.java
#	AlgebraicDataflowArchitectureModel/src/generators/JerseyMethodBodyGenerator.java
#	AlgebraicDataflowArchitectureModel/src/models/controlFlowModel/ControlFlowGraph.java

Update to filter resource nodes by call graph and establish reference edges for push/pull contexts

コンポーネントを生成するか否かを考慮して，ControlFlowGraph を生成するように修正した，

Merge remote-tracking branch 'origin/dynamicResourceCreation' into commonToControlFlowAndDependencyModelings

JAX-RS のコード生成で，ref ポートで参照しているサービス外部のリソースの状態を取得できていない不具合を修正．

Fix grid layout

Update comments

Rename local variables to make them easy-to-read

Update ControlFlowModelingStage and ControlFlowGraph to render the control-flow graph properly in the ControlFlowModeling stage

Add comments

Update comments and remove an unnecessary method argument.

Make PopupMenu not assignable

Update comments

Remove an unnecessary parameter in the constructor of ControlFlowDelegator.java

Add comments

Make objectNode final and remove unnecessary initializer

Add comments

Fix typo

Make selectedOption final

Remove unnecessary initializer

Make some fields final and remove unnecessary initializer