fcl-db: memds: when FieldDefs are changed set TableIsCreated to false to signal, that CreteTable should be called.
+ Add test unit for TMemDataset to allow test specific properties/methods of TMemDataset
+ Add this unit to test frameworks

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@26025 3ad0048d-3df7-0310-abae-a5850022a9f2