Adds command spo brandcenter colors list. Closes #7162#7187

MartinM85 merged 1 commit intopnp:mainpnp/cli-microsoft365:mainfrom

MathijsVerbeeck:add-spo-brandcenter-colors-listMathijsVerbeeck/cli-microsoft365:add-spo-brandcenter-colors-listCopy head branch name to clipboard