Update v0.6

• Added support for MacOS • Updated Factory 1 map • Added trail feature • Added observer view feature • Added tips • Added a mini-game: Balloon Buster • Updated drone sound system • Fixed cursor offset issue in fullscreen mode • Fixed some blurry textures • Fixed parameter alignment issue under actual and RF rates • Fixed collision bugs with some interactive objects • Fixed display error of the starting gate in racing mode • Fixed issue with entering the stadium scene on devices with 8GB RAM • Optimized overall memory usage