Sqlserver support (#1053)

* made some tests sqlserver ready (No effective code change in src/main)

* FIX enhance packages and let all testcases inherit from BaseTestCase, so that they can be launched directly from eclipse

* ADD sqldriver in pom and datasource

* FIX: DDL-generation for sqlserver - not yet all sqlserver tests passing
mvn verify -Ddatasource.default=mssql => Tests run: 1980, Failures: 22, Errors: 44, Skipped: 16

* BaseDdlHandlerTest checks against correct sqlserver-ddl now

src/test/java/org/tests/batchinsert/TestBatchInsertWithInitialisedCollection.java

@@ -18,7 +18,6 @@ public class TestBatchInsertWithInitialisedCollection extends BaseTestCase {
   @Test
   public void test() {
 
-    if (isSqlServer()) return;
 
     List<OCachedBean> list = new ArrayList();