Set `-enable-pretty-printing` and `-gdb-set disassembly-flavor intel` as default

[RichardLuo0]

Feature Request

It seems by default gdb enables pretty printing if launched from command line. But for some reason -enable-pretty-printing has to be set explicitly in launch.json for vscode. I don't understand why it is designed to be so. If you have lots of launch targets and your launch.json will be a mess.