Subject php7 master branch warning (work in progress)

In php 7 a few tests do fail after phpng merge 

InterBase: BLOB test [ext/interbase/tests/004.phpt]

InterBase: transactions [ext/interbase/tests/005.phpt]

InterBase: array handling [ext/interbase/tests/007.phpt]

ibase_trans(): Basic test [ext/interbase/tests/ibase_trans_001.phpt]

If anyone wants to help , we need some hands here

Some changes are already done (You can watch the git history) and there is still work to be done both in interbase and pdo_firebird extensions

Another big change if you watch the git history is 64bit cleanup