Changes the per-variant `bazel cquery` of all targets `//...`, to a 2 part query. The first part is a plain `bazel query` to compute the set of resmoke_suite_test targets to consider, and the second is the `bazel cquery` used to determine platform compatibility, but scoped to the output of the first query.

The analysis/configuration of all targets `//...` was a large part of the runtime, when only a small number of targets are of interest.