Updated udpcap to 2.0.2 (#16)

- Updated udpcap
- GH Actions: Upgraded windows build pipeline to VS 2019
- GH Actions: Improved builds by always building against static libs

CMake: Ecaludp now installs an ecaludpConfigVersion.cmake file (#12)

Added perftool for performance-testing different sender / reiver impl…

…ementations (#11)