Major refactor and API changes

- Updated `.gitignore` file
- Updated `CMakeLists.txt` to build static exectuable
- Changed some `Doxyfile` configurations to build more robust and complete documentation (WIP)
- Changed how `remote` works to better reflect `git`'s API (WIP)
- Changed how error handling works
- Improved `bin/compile.sh` script
- Improved `bin/lines.sh` script (kinda)
- Removed some instances of `fmt` in favor of `std` string functions
- Restructed style for better readibility

include/types.hpp

@@ -1,6 +1,14 @@
 #pragma once
 
+#include <tuple>
+#include <functional>
+#include <type_traits>
+#include <string>
+#include <variant>
+
 namespace gdpm{
+	class error;
+
 	/*
 	Base class to prevent derived class from creating copies.
 	*/
@@ -20,4 +28,20 @@ namespace gdpm{
 		non_movable(const non_movable&) = delete;
 		non_movable(non_movable&&) = delete;
 	};
+
+	template <typename T>
+	concept error_t = requires{ std::is_same<error, T>::value; };
+
+	using string 		= std::string;
+	using string_list 	= std::vector<string>;
+	using string_map 	= std::unordered_map<string, string>;
+	using string_pair 	= std::pair<string, string>;
+	using var 			= std::variant<int, bool, float, std::string>;
+	template <typename T = var> 
+	using _args_t 		= std::vector<T>;
+	using args_t 		= _args_t<string>;
+	template <typename Key = std::string, class Value = _args_t<var>> 
+	using _opts_t 		= std::unordered_map<Key, Value>;
+	using opts_t 		= _opts_t<string, string_list>;
+
 }