refactor: Interpret score with a provided method on Score (#100)

First step in a direction to better orchestrate the core flow, even though it feels weird to move this logic into the `Score`. We'll refactor this as soon as we have a better solution.

Co-authored-by: Ian Letourneau <letourneau.ian@gmail.com>
Reviewed-on: NationTech/harmony#100

harmony_cli/src/theme.rs

@@ -8,6 +8,7 @@ pub static EMOJI_SKIP: Emoji<'_, '_> = Emoji("⏭️", "");
 pub static EMOJI_ERROR: Emoji<'_, '_> = Emoji("⚠️", "");
 pub static EMOJI_DEPLOY: Emoji<'_, '_> = Emoji("🚀", "");
 pub static EMOJI_TOPOLOGY: Emoji<'_, '_> = Emoji("📦", "");
+pub static EMOJI_SCORE: Emoji<'_, '_> = Emoji("🎶", "");
 
 lazy_static! {
     pub static ref SPINNER_STYLE: ProgressStyle = ProgressStyle::default_spinner()