Working set 11 rolldown, with correct roll logic.

[sklimasz]

Correct roll logic to be consisent with game.
Remove headliner logic, game data from set 10.
Add data from set 11.

[github-actions]

Test Results

1 tests   - 5   1 ✅  - 5   22s ⏱️ -1s
1 suites ±0   0 💤 ±0 
1 files   ±0   0 ❌ ±0 

Results for commit 059a05b. ± Comparison against base commit 0a1f32f.

This pull request removes 6 and adds 1 tests. Note that renamed tests count towards both.

roll_sim.tests.test_headliners ‑ test_bad_luck_rules
roll_sim.tests.test_headliners ‑ test_conf_headliners
roll_sim.tests.test_headliners ‑ test_conf_no_level
roll_sim.tests.test_headliners ‑ test_pool_depletion_easier
roll_sim.tests.test_headliners ‑ test_pool_depletion_harder
roll_sim.tests.test_headliners ‑ test_simple_rolldown

roll_sim.tests.test_rolldown ‑ test_rolldown_logic_with_math

[github-actions]

File	Coverage
All files	66%	✅
code/champion.py	92%	✅
code/statistics.py	21%	❌
code/utils.py	69%	✅
scripts/rolldown.py	52%	❌
scripts/rollorlvl.py	0%	❌

Minimum allowed coverage is 66%

Generated by 🐒 cobertura-action against 059a05b