Global style change, Rocket class added

Global style change:
- all structures start with S- prefix
- all classes start with C- prefix
- all data members start with no prefix and uppercase letter
- all function members start lowercase letter
- all function members that return boolean start with is- prefix
- all function members that return void start with verb
- all function members that return some value start with get- prefix
- little refactoring

Rocket class added:
- basic particle class
- shooting from two wings turret