- Removing travis tests
- Updated FindPQXX to get the version
- Adding github actions for compilation:
- Postgres 9.6 to 13
- libpqxx 6 & 7
- Minimum Version Postgres 9.6 (supported version at this time)
- Minimum Version libpqxx 6
- C++ minimum standard depends on libpqxx
- For version libpqxx 6: C++14
- For version libpqxx 7: C++17