gst-inspect: Add support colored text on Windows also

Windows can understand VT code. See also
https://docs.microsoft.com/en-us/windows/console/console-virtual-terminal-sequences
3 jobs for color-on-windows in 6 minutes and 17 seconds
Status Job ID Name Coverage
  Preparation
passed #51182
manifest

00:00:22

 
  Build
passed #51183
build fedora x86_64

00:03:38

 
  Full Builds
passed #51184
build android arm64 api28

00:02:17