feat(lib/color): now adding the color management functions

- Discord always worked with #RRGGBB syntax so make a function to
translate that in number like the v15 ask to

src/lib/color.ts

@@ -0,0 +1,8 @@
+export const color = {
+	encode: (str: string): number => {
+		return parseInt(str, 16);
+	},
+	decode: (num: number): string => {
+		return num.toString(16);
+	},
+};