data: color-schemes: add Campbell colour scheme from Microsoft
Implement the Campbell colour scheme as found in Windows Terminal, according to Microsoft's specifications.
Link: https://github.com/microsoft/terminal/blob/068906714fa190e89020a3f59809ed9237b94708/src/tools/ColorTool/schemes/campbell.ini
Signed-off-by: Mingcong Bai jeffbai@aosc.io
Edited by Mingcong Bai