Add suite-connector build and test scripts

This adds the binaries, build scripts, and test scripts for suite-connector, following the general pattern of helper-tools but customized for the intricacies needed to build these binaries.

Also included is some basic details in the README as to the test layout and rationale.

https://phabricator.apertis.org/T8949

---

Draft because this still depends on the actual c2e instance being available.