Started to move statement-specific methods into the result provider classes

First method is: select_t::as()

tests/CMakeLists.txt

@@ -10,8 +10,8 @@ endmacro ()
 #build_and_run(InsertTest)
 #build_and_run(RemoveTest)
 #build_and_run(UpdateTest)
-#build_and_run(SelectTest)
-build_and_run(SelectTypeTest)
+build_and_run(SelectTest)
+#build_and_run(SelectTypeTest)
 #build_and_run(FunctionTest)
 #build_and_run(PreparedTest)
 

tests/SelectTest.cpp

@@ -83,5 +83,8 @@ int main()
 		int64_t a = row.alpha;
 	}
 
+
+	auto X = select(all_of(t)).from(t).as(t.alpha);
+
 	return 0;
 }