add permissions for colors and channels

[snowgears]

add permissions for colors and channels

e.g.

colorportals.build.white; //can build all portals with white on all channels
colorportals.use.white; //can use all portals that are white on all channels

colorportals.build.white.99; //can build white portals on channel 99
colorportals.build.white.1-99; //can build white portals on all channels between 1 and 99

colorportals.use.white.99; //can use white portals on channel 99
colorportals.use.white.1-99; //can use white portals on all channels between 1 and 99