Markus Pfeiffer

### Scope & Purpose Use CMake's GoogleTest integration to detect (and run) test-cases using `ctest`. Once this works, break up the `arangodbtests` binary into separate ones for each subdirectory.

[CMAKE] Don't blanket-link absl

3

### Scope & Purpose - [x] :hankey: Bugfix

### Scope & Purpose Covers the uncontroversial parts of #16796, namely removing stuff that is commented out or otherwise unused.

This PR just enables Replication2 as default setting in tests; this is just to enable full Jenkins runs with the new replication.

### Scope & Purpose Since the original test failure is still biting us, enable some HTTP request logging to see where our messages disappear.

### Scope & Purpose Draft to create a simpler way to implement Pregel Algorithms.

### Scope & Purpose Let's start spring cleaning CMakeLists.txt.

[CMAKE] Compiler Checks

1

### Scope & Purpose Improves and cleans up compiler version checks. We define the minimum required version of each supported compiler (currently Clang, GCC, MSVC), and a CMake macro checks...

[CMAKE] Add cppcheck target to CMakeLists.txt

2

### Scope & Purpose Adds a `cppcheck` target to `CMakeLists.txt`; enables the user to, after running `cmake`, run `make cppcheck` to get their source checked using `cppcheck` (if that tool...

### Scope & Purpose This PR aims to untangle the slightly unholy template mess that reigns in the path search code, and make it more similar to the traversal code