Logo (Builtin): add SleeperOS_small

src/logo/ascii/sleeperos_small.txt

@@ -0,0 +1,7 @@
+ _____
+[$2BBBBB$1]
+`^^7$2&$1/`
+ ,/$2&$1/`
+,/$2&$1Z__
+[$2BBBBB$1]
+`^^^^^`

src/logo/builtin.c

@@ -3979,6 +3979,16 @@ static const FFlogo S[] = {
             FF_COLOR_FG_WHITE,
         }
     },
+    // SleeperOS
+    {
+        .names = {"SleeperOS_small"},
+        .type = FF_LOGO_LINE_TYPE_SMALL_BIT,
+        .lines = FASTFETCH_DATATEXT_LOGO_SLEEPEROS_SMALL,
+        .colors = {
+            FF_COLOR_FG_CYAN,
+            FF_COLOR_FG_WHITE,
+        }
+    },
     // Slitaz
     {
         .names = {"Slitaz"},