Changes related to creation of a modular backend in multiprecision [SyncWith: crypto3-multiprecision#70] #57

All 115 tests pass, 4 skipped in 5s

  36 files +  4   36 suites +4 5s ⏱️ ±0s
119 tests +15 115 ✔️ +16   4 💤 ±0 0 ❌ - 1
576 runs +60 560 ✔️ +64 16 💤 ±0 0 ❌ - 4

Results for commit bc423cc. ± Comparison against earlier commit 0d767f7.