Saga 0.0.2 release

Major features

• Supported passing response from previous service to the next in Saga
• Supported returning transaction failure in response to caller
• Supported choosing sub-transaction path at runtime and provided demo application to showcase this feature

Minor improvements

• Removed an unnecessary event to reduce storage size
• Added delay between transaction retries in forward recovery mode
• Supported configuration of http timeout to requests from saga to services and default timeout is 30 seconds
• Added database failure handling when persisting events