Add Quartus and Vitis synthesis tests

[jmitrevs]

Prerequisites

Currently the synthesis tests are only run with Vivado_HLS. We should add Quartus and Vitis synthesis tests

Motivation

We should test all the backends we support.

Parts of hls4ml being affected

Validate the quality of all the backends

[zyt1024]

Hello, may I ask if the tests for adding Vitis synthesis have been completed? When will there be related examples available, approximately?