Added support for with_name with deferred_init and disabled hoisting …

[AjayBrahmakshatriya]

…variables that escape static scope

This pull request makes 2 changes -

1. Adds support for using builder::with_name with deferred_init. This is a simple change that just adds an overload.
2. Reverts the changes made in Fixed bug with dynamic variables escaping static scopes getting diffe… #60 . The rationale is as follows - The previous changes causes variables that escape scope to be merged and hoisted up. But this causes issues when dyn_vars or structs containing dyn_vars are heap allocated in a static loop.
   We are defaulting to no hoisting the variables and we can add a metadata if the hoisting behavior is needed. In the future the proper fix would be to selectively merge paths only when the live dynamic variables on both the side are the same.

TODO: Implement the proper fix.