Sort include-order for definitions

[JPietrzykTUD]

As some primitives internally use other primitives declared and defined in different files, we need to build a dependency graph and sort the includes in tsl_generated.hpp accordingly.
Example:
calc.yaml:1236ff (mod<simd<uint32_t, avx512>>):

/*...*/
__m512 vec_d = tsl::cast<Vec, typename Vec::template transform_extension<T>>(vec);
/*...*/

Cast is defined in convert.yaml:360ff.
The include order would be:

#include "extensions/scalar.hpp"
#include "extensions/simd/intel/avx2.hpp"
#include "declarations/*"
#include "definitions/compare/compare_avx2.hpp"
#include "definitions/compare/compare_sse.hpp"
#include "definitions/compare/compare_scalar.hpp"
#include "definitions/calc/calc_avx2.hpp"
#include "definitions/calc/calc_sse.hpp"
#include "definitions/calc/calc_scalar.hpp"