v0.4.0

• On range insert in tsl::array_map, try to move the values when possible (e.g. if the iterators are std::move_iterator).
• Fix range erase method, take care of the invalidation of the iterators on erase.
• Put growth policies in tsl::ah namespace instead of using a suffix.
• Put growth policies in their own header file and add tsl::ah::mod_growth_policy.