QWTv1.0: Add qwt license version 1.0

Needed for qwt

fixes parse warning e.g.

WARNING: qwt: No generic license file exists for: QWTv1.0 in any
provider

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>