Sizes of BLOB and MEDIUMBLOB were backwards. Likewise TEXT and MEDIUMTEXT.
TINY were off-by-one.
merge MMcM: Sizes of MCOMPAT_ BLOB and MEDIUMBLOB were backwards. Likewise TEXT and MEDIUMTEXT.

Merge pull request #1116 from MMcM/sql-layer/types3-medium-lob-sizes
https://github.com/FoundationDB/sql-layer/pull/1116