* Add INFORMATION_SCHEMA.COLUMNSTORE_FILES which contains information
about files
* Remove file information from COLUMNSTORE_EXTENTS (due to above)
* Hide columns with Object ID < 3000 (internal columns)
* Fix bad calculation in data_size columns
* Fix minor memory leak
* Add compressedSize() function to IDBFileSystem to get the used file
size for a compressed file
* Add columnstore_info schema with utility stored procedures to access
the information_schema tables
This patch does the following:
* Fix a year storage issue in the datestamp for the columnstore tables
metadata table (note that any previous tables will still have the
incorrect year stored).
* Expose the table creation date in CalpontSystemCatalog::getTables()
* Add an INFORMATION_SCHEMA table listing the tables in ColumnStore
(similar to systable)
* Add an INFORMATION_SCHEMA table listing the columns in ColumnStore
(similar to syscolumn)
* Add an INFORMATION_SCHEMA table listing the extents in ColumnStore
(similar to the editem tool but with additional file information)
* Modifies the build system and scripts to support the new tables
