Switch to Troppical API

[kleidis]

This PR switches to Tropical API to fetch emulators instead of hard coding them into the Python file itself

This means

• We can dynamically add emulators more easily
• We don't need to store the assets on our repo anymore which is great for Switch emulators especially

I have rewritten most of the code to work with this API

We also have added a few new emulators

• Panda3DS stable releases
• Strato (Android Only)
• Torzu (not yet in the API script but will be added shortly

Thanks to @ishan09811 for helping me not only with this but for the Android port of this app