Delphi unit status list

Here I keep some notes about which Delphi units are supported by FPC, and what not, and if they are reasonably complete or largely "unimplemented" If you know in what version they were added don't hesitate to annotate them with D6+ or so

Strutils - Large parts done, but not very optimal.

dateutils - Looks reasonably complete

convutils - Basic unit convert functions implemented. Couldn't find much docs on the net about this unit.

Masks - (TExprParser?) Don't know what this does, but it is missing.

dbcommon - missing, but maybe this is stuff factored out from unit db.

variants - implemented, but a lot of the wrapper classes ( TPublishablevarianttype, TInvokablevarianttype etc) are either not existing, or have a lot of missing methods.

fmtbcd - doesn't exist. (Format BCD?)

sqltimst - doesn't exist