CI/CD implementation
Implementation of a Continuous Integration and Continuous Deployment system using Appveyor. This CI/CD now produces the artifacts found in releases. The system is not yet completely operational and artifacts had to be copied manually from Appveyor. For this release these are the artifacts produced in this run: https://ci.appveyor.com/project/f4exb/sdrangel/builds/31157356
For more details on artifacts and their contents please read the quick start in the Wiki. This does not change much for Windows but the Debian package for Linux is now part of a .tar.gz archive containing other elements. Note that the artifact for Linux should have been sdrangel-22-master.tar.gz however at the time dev and master were coinciding with the 4.13.2 tag. Automation is not yet fully functional as mentioned earlier.
Other fixes
- XTRX output: added missing file in cmake file