Updates required for QAT

This MR includes:

• Abs operator;
• Hook system for Node (as suggested in #98 (closed) @thibaultallenet).
• Update of SinglePassGraphMatching to match no connection (with the special node keyword $).
• Solved some SinglePassGraphMatching issues and added more complex unit tests.
• Added missing inChannels() method for FC operator;
• Added matchFrom() method to SinglePassGraphMatching in order to match a query only for a specific starting node;
• Fix issue #87 (closed).

include/aidge/utils/StaticAttributes.hpp

@@ -158,7 +158,11 @@ public:
                 std::enable_if_t<(SIZE > 0), bool> = true>
     constexpr const std::type_info& getAttrType(std::size_t i) const {
         if (i == SIZE-1) {
-            return typeid(typename std::tuple_element<SIZE-1,std::tuple<T...>>::type);
+            // Workaround for NVCC from 12.2.1 to 12.4.1
+            // error: no suitable constructor exists to convert from "const char *" to "std::type_info"
+            typename std::tuple_element<SIZE-1,std::tuple<T...>>::type dummy;
+            return typeid(dummy);
+            //return typeid(typename std::tuple_element<SIZE-1,std::tuple<T...>>::type);
         }
         else {
             return getAttrType<SIZE-1>(i);