Fuse bn

• Fix Add + Mul recipies
• Add fuseBN recipies
• Fix parameters issue #8 (closed)
• Update tensor to get/set values
• Add approxEq Tensor utils method to check if two tensor are approximatly equals
• Update the way scheduler is updated
• Add unit test for:
  • fuse Add + Mul
  • remove padding
  • Add unit test for fuseBN recipies (TODO in aidge_backend_cpu because of dependancie to the backend for the test)

include/aidge/utils/Parameter.hpp

@@ -140,7 +140,7 @@ public:
     }
 
     template <typename R, std::size_t SIZE = std::tuple_size<std::tuple<T...>>::value-1>
-    constexpr typename std::enable_if<(SIZE > 0), R&>::type get(std::size_t i) {
+    constexpr typename std::enable_if<(SIZE < std::numeric_limits<std::size_t>::max()), R&>::type get(std::size_t i) {
         if (i == SIZE) {
             if (std::is_same<R, typename std::tuple_element<SIZE,std::tuple<T...>>::type>::value) {
                 return reinterpret_cast<R&>(std::get<SIZE>(mParams));
@@ -155,7 +155,7 @@ public:
     }
 
     template <typename R, std::size_t SIZE = std::tuple_size<std::tuple<T...>>::value-1>
-    constexpr typename std::enable_if<(SIZE <= 0), R&>::type get(std::size_t i) {
+    constexpr typename std::enable_if<(SIZE == std::numeric_limits<std::size_t>::max()), R&>::type get(std::size_t /*i*/) {
         assert(false && "parameter not found");
     }