Adding files for Ada

[dewar@gnat.com]

<<I was talking about the 0000-xxx tests, IIRC the only issue there is
for ACT to put an appropriate header on them and ship them to me.  I
believe they all were developped by ACT, and it looks like it is what
Richard Kenner says too:
>>

Nevertheless, they all have to be carefully checked. For the record, there
are currently 215 directories in this category, and many of them contain
multiple source files.