separate data from schema again, improve DX

Author: ScriptRaccoon

database/data/000_clear.sql

@@ -0,0 +1,25 @@
+PRAGMA foreign_keys = OFF;
+
+DELETE FROM implication_assumptions;
+DELETE FROM implication_conclusions;
+DELETE FROM implications;
+
+DELETE FROM category_isomorphisms;
+DELETE FROM category_epimorphisms;
+DELETE FROM category_monomorphisms;
+
+DELETE FROM category_non_properties;
+DELETE FROM category_properties;
+
+DELETE FROM category_comments;
+DELETE FROM related_categories;
+DELETE FROM category_tags;
+DELETE FROM categories;
+
+DELETE FROM tags;
+
+DELETE FROM related_properties;
+DELETE FROM properties;
+DELETE FROM prefixes;
+
+PRAGMA foreign_keys = ON;