lazy game.AddParticle experiment

[Python1320]

game.AddParticle loads all textures into memory from TF2 which is around 700MB VRAM wasted.
This is AI coded experiment to see how well lazy loading would function.

I have really only checked that some sort of particle spawns ingame when I add a effect particle part.
Additional fixes to code required before hopes of merging:

• fix lint errors
• add more error checking to sqlite (full disk will cause lots of error spam)
• pac code conventions?
• what if cl.db is completely broken as it is for many users
• error handling for unknown particle effect parsing
• maybe try improving particle selector so you can see
• Check if serverside particle precaching is required anymore? It seems not as this worked: https://wiki.facepunch.com/gmod/Global.ParticleEffect#example

[Python1320]

It seems we can maybe get rid of serverside precaching with CreateParticleSystemNoEntity ( Facepunch/garrysmod-requests#3308 (comment) )