Streamline last chunk verification on startup

Changes is conversion and comparison methods of Value

Fix ConditionInConstantSet for ENUM data type

Replace some init methods with constructors

NoSuchElementException instead of returning null

Streamline Value comparison

Optimize MVSecondaryIndex.convertToKey()

Database.mvStore - > store
MVTableEngine.Store.store - > mvStore

Force SYS_ID.ID index always to be a MVDelegateIndex

Minor refactorings

Add support of TIMESTAMP WITH TIME ZONE to addition and subtraction operators

Prefer explicitly defined primary key

Change MVSecondaryIndex uniqueness check

Allow creation of delegate index in ALTER TABLE