Logo (Builtin): add ObsidianOS (#1890)

src/logo/ascii/obsidianos.txt

@@ -0,0 +1,19 @@
+                  $1-`$2
+                 .$1o+`$2
+                `o$1oo/$2
+               `+o$1ooo:$2
+              `+oo$1oooo:$2
+              -+oo$1oooo+:$2
+            `/:-:+$1+oooo+:$2
+           `/++++/$1+++++++:$2
+          `/++++++$1++++++++:$2
+         `/+++oooo$1ooooooooo/`$2
+        ./ooosssso$1++osssssso+`$2
+       .oossssso-`$1```/ossssss+`$2
+      -osssssso.  $1    :ssssssso.$2
+     :osssssss/   $1     osssso+++.$2
+    /ossssssss/   $1     +ssssooo/-$2
+  `/ossssso+/:-   $1     -:/+osssso+-$2
+ `+sso+:-`        $1         `.-/+oso:$2
+`++:.             $1              `-/+/$2
+.`                $1                 `/$2

src/logo/builtin.c

@@ -3392,6 +3392,15 @@ static const FFlogo O[] = {
             FF_COLOR_FG_WHITE,
         },
     },
+    // ObsidianOS
+    {
+        .names = {"ObsidianOS"},
+        .lines = FASTFETCH_DATATEXT_LOGO_OBSIDIANOS,
+        .colors = {
+            FF_COLOR_FG_MAGENTA,
+            FF_COLOR_FG_CYAN,
+        },
+    },
     // OmniOS
     {
         .names = {"OmniOS"},