Init utils/strings module

For keeping longer text output helpers, such as e.g. license text and
CoC.

Signed-off-by: Christina Sørensen <christina@cafkafk.com>

src/utils.rs

@@ -1 +1,2 @@
 pub mod dir;
+pub mod strings;

src/utils/strings.rs

@@ -0,0 +1 @@
+