Reduce UT binary size (#314)

* Reduce UT binary size

Almost every module depend on ExecEnv, and ExecEnv contains all
singleton, which make UT binary contains all object files.

This patch seperate ExecEnv's initial and destory to anthor file to
avoid other file's dependence. And status.cc include debug_util.h which
depend tuple.h tuple_row.h, and I move get_stack_trace() to
stack_util.cpp to reduce status.cc's dependence.

I add USE_RTTI=1 to build rocksdb to avoid linking librocksdb.a

Issue: #292

* Update

be/src/util/stack_util.cpp

@@ -0,0 +1,34 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+#include "util/stack_util.h"
+
+namespace google {
+namespace glog_internal_namespace_ {
+void DumpStackTraceToString(std::string* stacktrace);
+}
+}
+
+namespace doris {
+
+std::string get_stack_trace() {
+    std::string s;
+    google::glog_internal_namespace_::DumpStackTraceToString(&s);
+    return s;
+}
+
+}