Give TClass a method to get the corresponding JDBC type id, just as TInstance can get a DataTypeDescriptor.
Update Direct to use those in place of AkType.
Reenable the direct data-type tests.
Fix the actual problem with getTime.
Remove old AkType-based test suite, which was only being used in a minimal way to drive a subset of the old RowData conversion test.
Use the Type method instead of duplicating it.
Get rid of AkType in Type.
Not collating like null AkType.
Finally, remove the enum.
merge MMcM: Get rid of AkType

Merge pull request #1106 from MMcM/sql-layer/remove-aktype
https://github.com/FoundationDB/sql-layer/pull/1106