This adds an additional check to detected if VDPM is running on an ARM64 Linux OS and changes the VitaSDK package download to a fork of the VitaSDK toolchain that supports ARM64. Doesn't affect Linux x86_64/Windows/Mac installations
Changes have been made. Also made sure to provide an "Unsupported Architecture" error in the case of ARM64 Mac/Windows users (if windows even shows uname -m for that)
This adds an additional check to detected if VDPM is running on an ARM64 Linux OS and changes the VitaSDK package download to a fork of the VitaSDK toolchain that supports ARM64. Doesn't affect Linux x86_64/Windows/Mac installations