Update Svc/StaticMemory to have configurable memory by instance

[timcanham]

Svc/StaticMemory currently has a configuration variable STATIC_MEMORY_ALLOCATION_SIZE that sets the size of the buffer. It can be done per deployment by setting that variable in StaticMemoryConfig.hpp, but the component would be generally more useful if each instance could be configured to have its own size. Recommendation would be to have an initialize(Fw::MemAllocator alloctor public function that could delegate to the user how to allocate memory, but use Fw::MallocAllocator in Ref as an example.

[ThibFrgsGmz]

This seems to me to be a good idea. It would leave more configurability to the user.