Add onedark_dark scheme (#23)

Author: 404Wolf

base16/onedark-dark.yaml

@@ -0,0 +1,21 @@
+system: "base16"
+name: "OneDark Dark"
+author: "olimorris (https://github.com/olimorris)"
+variant: "dark"
+palette:
+  base00: "000000"
+  base01: "1c1f24"
+  base02: "2c313a"
+  base03: "434852"
+  base04: "565c64"
+  base05: "abb2bf"
+  base06: "b6bdca"
+  base07: "c8ccd4"
+  base08: "ef596f"
+  base09: "d19a66"
+  base0A: "e5c07b"
+  base0B: "89ca78"
+  base0C: "2bbac5"
+  base0D: "61afef"
+  base0E: "d55fde"
+  base0F: "be5046"