Solve memory leaks and add CI

See merge request !1

[Bug] Solve several memory leaks in the code

See merge request aidge/aidge_core!2

[Bug] Solve memory leak induced by circular reference using shared_ptr between Node/Node and Node/GRaphView"

- Children Nodes are referenced by weak_ptr in Node
- GraphViews are referenced by weak_ptr in Node

Providing a vector as a Parameter for a GenericOperator caused a memory leak.
Solved using malloc instead of pointers to vector's data