Add database internal edit_* tables CUID, CSS loading style

all edit_* have CUID random alphanumeric unique id with 12 characters
length.
automatically created on INSERT and not touched on update.
but can be udpated manually on UPDATE command.
on INSERT cuid is ALWAYS overwritten with auto create

Add CSS loading style sheet

4dev/database/function/random_string.sql

@@ -0,0 +1,18 @@
+-- create random string with length X
+
+CREATE FUNCTION random_string(randomLength int)
+RETURNS text AS $$
+SELECT array_to_string(
+	ARRAY(
+		SELECT substring(
+			'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789',
+			trunc(random() * 62)::int + 1,
+			1
+		)
+		FROM generate_series(1, randomLength) AS gs(x)
+	),
+	''
+)
+$$ LANGUAGE SQL
+RETURNS NULL ON NULL INPUT
+VOLATILE; -- LEAKPROOF;