Add `https://github.com/Tessil/ordered-map`

Add is_specialization_of to Utility.hpp
Add OpenVic::ordered_map and OpenVic::ordered_set
Change `std::map` to `ordered_map`
Change `std::set to use `ordered_set`
Add `set_callback_pointer(tsl::ordered_set<T const*>& set)`
Add mutable_iterator to enable mutable value iterator for `tsl::ordered_map`
Add std::hash<OpenVic::Date> implementation
Enable deps/SCsub to expose dependency includes neccessary for inclusion

1 files changed, 0 insertions, 0 deletions

diff --git a/deps/ordered-map b/deps/ordered-map
new file mode 160000
+Subproject bd8d5ef4149cd40783a486011778a2e7eedde44