Add complier flags to protect against stack smashing attack

[spaultownsend]

First of all, thank you for providing a very nice library!

During a security review, it was noted that the Amplituda native libraries could be susceptible to a stack smashing attack.

It is possible to build in protection against this by adding some compiler flags. Specifically by adding the complier flags: -fstack-protector-all, -fpic, and -fstack-protector-strong.

Our ask: Create a new release of Amplituda with the native c/c++ code compiled with the above flags.