feat: Add first modules

This adds the first modules blocks from the initial proof of concept, with basic docs.
Currently missing is bundling and usage instructions

src/main.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+
+# shellcheck source=src/prompts.sh
+source "${BASH_SOURCE%/*}/prompts.sh"
+# shellcheck source=src/user_feedback.sh
+source "${BASH_SOURCE%/*}/user_feedback.sh"
+# shellcheck source=src/logging.sh
+source "${BASH_SOURCE%/*}/logging.sh"