Create temporary PredicateBuilder class

In the original FastADC pull request this class manages creation of
predicates, so it initializes PredicateProvider. But in this pr this
class is not required for DC verification. Hence adding a temorary
class just to make the tests work

src/core/algorithms/dc/predicate_builder.h

@@ -0,0 +1,13 @@
+#pragma once
+
+#include "dc/predicate_provider.h"
+
+namespace model {
+
+class PredicateBuilder {
+public:
+    PredicateBuilder() {
+        PredicateProvider::CreateInstance();
+    }
+};
+}  // namespace model

src/tests/test_dc_structures.cpp

@@ -8,6 +8,7 @@
 #include "dc/column_operand.h"
 #include "dc/operator.h"
 #include "dc/predicate.h"
+#include "dc/predicate_builder.h"
 #include "table/column_layout_typed_relation_data.h"
 
 namespace tests {
@@ -218,6 +219,8 @@ TEST(Predicate, PredicateCreatesCorrectly) {
             mo::ColumnLayoutTypedRelationData::CreateFrom(parser, true);
     std::vector<mo::TypedColumnData> col_data = std::move(table->GetColumnData());
     Column const *first = col_data[0].GetColumn(), *second = col_data[1].GetColumn();
+    // FIXME: temprorary to make test work
+    model::PredicateBuilder pbuilder;
 
     mo::PredicatePtr s_a_less_t_b =
             mo::GetPredicate(mo::Operator(mo::OperatorType::kLess), mo::ColumnOperand(first, true),