Add comprehensive performance scaling data

- Added performance tables for 1, 2, 5, 10, 100, 1000, 2000 decimals
- Shows how each language scales with increasing precision
- Includes memory usage data for all decimal counts
- Added key observations about scaling behavior
- Documented performance leaders and memory efficiency patterns

timelines/Nim/run_1.tsv

@@ -1 +1 @@
-5 0 0
+9 2244608 0