Change `qenv` as `environment` "type" -- adds `names(qenv/qenv.error)`, `get()` and `$` S3 methods #226

All 122 tests pass, 2 skipped in 1s

1 files ±0 10 suites ±0 1s ⏱️ ±0s
124 tests ±0 122 ✅ ±0 2 💤 ±0 0 ❌ ±0
219 runs ±0 217 ✅ ±0 2 💤 ±0 0 ❌ ±0

Results for commit 236ce59. ± Comparison against earlier commit d8d1a8e.