#6 block size declaration in generated forms

[naim]

The syntax for declaration of a block generated actually by tanit is that of the old kopi syntax:
BLOCK (buffered, shown) EXAMPLE : EXP "BLOCK DESCRIPTION"

The actual syntax for kopi block declaration is like the following :
BLOCK (shown, buffered) EXAMPLE : EXP "BLOCK DESCRIPTION"

The generation syntaxe must be modified according to the change made in kopi.