"Model" base class

[rdoddanavar]

Implement class that defines utilities for managing the internal state of a physical model:

Possible methods/functions:

• State initialization
• " " update --> the model routine itself
• " " reset
• process to call & update models it depends on

[rdoddanavar]

Think about using std::map as a state container, as opposed to std::vector<float>

https://en.cppreference.com/w/cpp/container/map

[rdoddanavar]

Possible derived classes:

• Kinematic ascent model
• " " descent model
• aerodynamic model
• propulsion model
• atmospheric model
• geodetic model

By linking models, time step updates could be automatic? i.e. kinematic model updates, calls dependent models (any model that affects EOM, meaning all of them), their states update

Allows for flexibility: mutiple kinematic, aero, prop models can be linked for different phases/stages of flight?

@jacobcaesar

[rdoddanavar]

Discussion on virtual functions: https://stackoverflow.com/questions/2391679/why-do-we-need-virtual-functions-in-c?rq=1

[rdoddanavar]

Override keyword: https://stackoverflow.com/questions/18198314/what-is-the-override-keyword-in-c-used-for