Add the remaining 8-bit colors to the css

[milandamen]

In order to see proper colors for the first 16 colors in the 8-bit color range, I had to add the following to my css file (based on terminal.css):

.term-fgx0 { color: #000000; }
.term-fgx1 { color: #800000; }
.term-fgx2 { color: #008000; }
.term-fgx3 { color: #808000; }
.term-fgx4 { color: #000080; }
.term-fgx5 { color: #800080; }
.term-fgx6 { color: #008080; }
.term-fgx7 { color: #c0c0c0; }
.term-fgx8 { color: #808080; }
.term-fgx9 { color: #ff0000; }
.term-fgx10 { color: #00ff00; }
.term-fgx11 { color: #ffff00; }
.term-fgx12 { color: #0000ff; }
.term-fgx13 { color: #ff00ff; }
.term-fgx14 { color: #00ffff; }
.term-fgx15 { color: #ffffff; }

I got the color codes from the wikipedia page: https://en.wikipedia.org/wiki/ANSI_escape_code#8-bit