[FR] Add support of vgc://-keys

[Korb]

Feature description

Currently, when trying to add a configuration to the Hiddify using a Add From Clipboard function and a key like vgc://SCoQYzqLAHdCWgc…, an "Failed to Add Profile. Invalid Configs. unable to determine config format" error message appears.

This is a VPN Generator configuration supported by the VPN Generator and Amnezia VPN applications.

Hiddify 2.1.5 (Aug 5, 2024)

Model: Vivo T1 (4G, V2153)
OS version: Funtouch OS 14
Hardware version: MP_0.1
Build number: PD22010F_EX_A_14.2.9.0.W20
Baseband version: .HA.1.1.c2-00054-DIVAR_GENSP_PACK-1.29062.107
Kernel version: 4.19.157-perf+, 1 Sat Oct 12 11:14:50 CST 2024
Compile time: 12 Oct 2024 06:06:30
Android security update: 1 October 2024
Google Play system update: 1 September 2024
Software parameter update: 15 October 2024

[titancomputer]

PR welcomed