EAMxx: set a few clang-format options

[bartgol]

Avoids annoying ugly formatting of all EKAT_REQUIRE_MSG macros.

[BFB]

---

E.g., before this branch, the following code

  EKAT_REQUIRE_MSG (dims.size()==tags.size(),
      "Error! Tags and dims vectors dimensions mismatch.\n"
      "  tags size: " + std::to_string(tags.size()) + "\n"
      "  dims size: " + std::to_string(dims.size()) + "\n");

was formatted as

  EKAT_REQUIRE_MSG(dims.size() == tags.size(), "Error! Tags and dims vectors dimensions mismatch.\n"
                                               "  tags size: " +
                                                   std::to_string(tags.size()) +
                                                   "\n"
                                                   "  dims size: " +
                                                   std::to_string(dims.size()) + "\n");

With these mods (namely, the Macros: ... mod for this setting), it is left untouched, which is for the best.

The other two options avoid multiple empty lines, and excessive indenting in the constructor initializer list (I was getting like 4 spaces, despite the tab size being 2).

[mjschmidt271]

Looks good to me!

However, this has revealed a shortcoming of my recently merged changes. Namely, my find command picks up a LOT of suppression (.supp) files.

... will fix shortly

[mjschmidt271]

Ended up just pushing to this branch since it was a tiny fix