sprintf added, terminal colors

small code fixes and rearangements

tests/test.lsp

@@ -158,4 +158,20 @@
 (print "list:" l)
 (print "flatten-ed list:" (flatten l))
 
+(print (sprintf "%.2f" '(1.23456)))
+(print (sprintf "%d" '(10000000)))
+
+
+(print (term-red "red text"))
+(print (term-green "green text"))
+(print (term-yellow "yellow text"))
+(print (term-blue "blue text"))
+(print (term-magenta "magenta text"))
+(print (term-cyan "cyan text"))
+(print (term-white "white text"))
+(print (term-bold "bold text"))
+(print (term-underline "underline text"))
+(print "normal text")
+
+
 (print "Test ends")