Removes the 32-bit release build from PR builds (the 64-bit should catch nearly all warnings).
Further shrinks drcachesim tests using the Jacobi app by dropping to a 64 matrix size and 3 instead of 5 iterations.
Shrinks drcacheoff tests on Windows by capping the trace sizes at 1M, except for basic_counts which needs the full run to see kernel events. Relaxes all of the templates to allow for correspondingly varying simulator statistics.
Issue: #4059 (closed)