lang: Use bool for in_stack

lang: Split list in to its own file

lang: Wrap object lists in an Object

lang: Move args_len to a runtime calculation

lang: Add reference counting to ObjectList

lang: Use getters and setters for object_list

lang: Use an object_list for use_modules

lang: Be explicit about ModuleInfo's constness

lang: Clarify usage of traverse_module_uses

lang: Rename module args to use_modules

lang: Pass dependencies to modules

lang: Switch to for loops for string iteration

lang: Create a module and find its dependencies in a new function

lang: Fix const uses for ModuleInfo

lang: Create modules and dependencies on request

lang: Don't double traverse visited modules

lang: Fix another off-by-one error

lang: Remove unused include

lang: Rename module_stack top to next

lang: Fix off-by-one error stack setting

lang: Support multiple traverses

lang: Moved visited stack to module_find

lang: Switch to depth first search for modules

lang: Add module loading dependency walker

lang: Add code to find a module by its name