Reduce path length in Trafodion for improved performance and scalability

To improve OLTP kind of queries, a sample application was profiled to determine the unnecessary dominant functions in Trafodion. It is found that

1. JULIANTIMESTAMP was abnormally  taking longer path length.
2. Unnecessary memset after malloc because new and delete operators were overloaded.

This Jira will act as covering Jira for future enhancements too