AppDbUpdater: Extract sql commands as embedded resources

Elwig/Resources/Sql/11-12.sql

@@ -0,0 +1,11 @@
+-- schema version 11 to 12
+
+CREATE VIEW v_stat_member AS
+SELECT year, mgnr,
+       SUM(weight) AS sum,
+       ROUND(SUM(kmw * weight) / SUM(weight), 2) AS kmw,
+       ROUND(SUM(oe * weight) / SUM(weight), 1) AS oe,
+       COUNT(DISTINCT did) AS lieferungen
+FROM v_delivery
+GROUP BY year, mgnr
+ORDER BY year, mgnr;