Introduce enroll explain

A tool to analyze and explain what's in (or not in) a harvest and why.

tests.sh

@@ -15,8 +15,24 @@ poetry run \
 	  --harvest "${BUNDLE_DIR}" \
 	  --out "${ANSIBLE_DIR}"
 
-builtin cd "${ANSIBLE_DIR}"
+# Analyse
+poetry run \
+	enroll explain "${BUNDLE_DIR}"
+poetry run \
+        enroll explain "${BUNDLE_DIR}" --format json | jq
 
+# Install something, harvest again and diff the harvests
+sudo apt-get -y install cowsay
+poetry run \
+	enroll harvest --out "${BUNDLE_DIR}2"
+poetry run \
+	enroll diff \
+	--old "${BUNDLE_DIR}" \
+	--new "${BUNDLE_DIR}2" \
+	--format json | jq
+
+# Ansible test
+builtin cd "${ANSIBLE_DIR}"
 # Lint
 ansible-lint "${ANSIBLE_DIR}"