For ENG-6247, first stab at refactoring export streaming so it can be used for DR
For ENG-6247, add missing files
For ENG-6247, update export format to be more space efficient so it can be shared with DR

The main change is to use smaller sizes for smaller integer types instead of always using a long.

For decimals instead of using a string prefix with scale and precision in bytes. Right now this is always 12 and 16, but in the future it serialization could trim to the smallest necessary scale and precision and other scales and precisions can be supported.

The prefixes are large enough to exceed the supported representions of postgres and mysql, and postgres's is quite large.
For ENG-6247, fix a few test blocking bugs
For ENG-6247, fix test bugs
For ENG-6247, provide necessary byte ordering for decimal
For ENG-6247, attempt #2 at getting test byte ordering working
Merge branch 'dr-integration' into ENG-6247
For ENG-6247, only use a byte for scale and precision
Merge branch 'dr-integration' into ENG-6247
Merge pull request #1370 from VoltDB/ENG-6247

Eng 6247