Support source links for a profile mode app.

Right now, these links are disabled for a couple reasons:
1) in profile mode, we do not initialize the script manager. This code should be refactored so that the script manager itself is responsible for updating scripts on isolate changes and initial connection, instead of the current impl which has consumers of the isolate manager (debugger related features) responsible for refreshing scripts on the isolate manager.
2) in profile mode, the debugger page is disabled, so we do not have a destination for the links. We should use the new "tools" stream to navigate to the source uri in the user's IDE instead.
CC @bkonyi

profile mode が script manager を初期化する方法と、isolate manager の利用側がスクリプトを更新する方法を追跡し、その後、新しい tools stream のナビゲーションパスを調査します。完了条件は、profile mode のソースリンクがユーザーの IDE で source URI を開き、isolate の変更時と初期接続時にスクリプトが更新されることです。

索引モデルが issue の本文から書いたものです。