parameterize number of dimensions of vector in tvec<D, T, P>

- specializes for 1, 2, 3 and 4-dimensional vector types
  which are then aliased as tvec1, tvec2, tvec3 and tvec4
- requires C++11 aliases; breaks compatability with C++03
- tested on:
  - clang-3.5.2, clang-3.8.0
  - gcc 4.8.5, gcc 5.4.1, gcc 6.2.0

TODO:
- still uses template template parameters - most can probably be removed
- some definitions might now be de-duplicated

test/external/gli/core/coord.hpp

@@ -5,8 +5,8 @@
 namespace gli{
 namespace detail
 {
-	template <typename T, precision P, template <typename, precision> class vecType>
-	inline vecType<bool, P> in_interval(vecType<T, P> const& Value, vecType<T, P> const& Min, vecType<T, P> const& Max)
+	template <int D, typename T, precision P, template <int, typename, precision> class vecType>
+	inline vecType<D, bool, P> in_interval(vecType<D, T, P> const& Value, vecType<D, T, P> const& Min, vecType<D, T, P> const& Max)
 	{
 		return greaterThanEqual(Value, Min) && lessThanEqual(Value, Max);
 	}