Add PathPregeneratedParticle and Generator

ParticleGenerator/res/config/imgui.ini

ParticleGenerator/src/Particle/PathPregenerated.cpp

ParticleGenerator/src/Particle/PathPregenerated.hpp

...ator/src/Particle/generator/PathPregeneratedGenerator.cpp

...ator/src/Particle/generator/PathPregeneratedGenerator.hpp

ParticleGenerator/src/Scene/Scenes/PathPregenerated.cpp

ParticleGenerator/src/Scene/Scenes/PathPregenerated.hpp

...icleGenerator/src/Scene/Scenes/TrajectoryPregenerated.cpp

...icleGenerator/src/Scene/Scenes/TrajectoryPregenerated.hpp

ParticleGenerator/src/main.cpp