Update firstperson to 2.0.2

[Zoinkwiz]

Removes GPU code, makes the GPU mode rely on an existing renderer, or else defaults to detached mode. This should hopefully make it more stable after the internal changes for perspective.

[runelite-github-app[bot]]

first-person: 3f277eee42521f1ad1f69f8231bc2da4b653242a...750e0d32a53ed090f105f1e6d700d90be4cc3ce7