[Feature] option to install latest GloriousEggroll proton forks

User story
[As a] gamer
[I want] to install the latest Proton-GE forks
[So that] I can maximise game compatability

User Acceptance Criteria

[Given] the install script is running
[Then] give option to install latest Proton-GE forks
[When] configuring install parameters

[Given] the user has booted the device
[Then] check for Proton-GE updates
[When] the DE starts