Add resource usage timeline diagrams to README

- Added Mermaid XY charts showing memory usage over time
- Individual charts for Elixir, TypeScript, Dart, Haskell, C
- Comparison chart for fast languages
- Shows how memory usage varies during program execution
- Based on actual timeline data from benchmark runs

timelines/Scala/run_1.tsv

@@ -0,0 +1,32 @@
+9   1968 0
+33   2048 0
+58   2048 0
+80   2048 0
+103   2048 0
+126   2048 0
+150   2048 0
+175   2048 0
+198   2048 0
+222   2048 0
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+265   2048 0
+289   2048 0
+312   2048 0
+336   2048 0
+360   2048 0
+383   2048 0
+407   2048 0
+432   2048 0
+456   2048 0
+479   2048 0
+503   2048 0
+526   2048 0
+567   2048 0
+595   2048 0
+622   2048 0
+647   2048 0
+671   2048 0
+695   2048 0
+723   2048 0
+746   2048 0
+777   2048 0

timelines/Scala/run_2.tsv

@@ -0,0 +1,15 @@
+9   2048 0
+31   2048 0
+53   2048 0
+75   2048 0
+97   2048 0
+118   2048 0
+140   2048 0
+161   2048 0
+186   2048 0
+210   2048 0
+235   2048 0
+260   2048 0
+291   2048 0
+317   2048 0
+351   2048 0

timelines/Scala/run_3.tsv

@@ -0,0 +1,19 @@
+9   2080 0
+31   2080 0
+55   2080 0
+77   2080 0
+101   2080 0
+124   2080 0
+148   2080 0
+172   2080 0
+194   2080 0
+219   2080 0
+240   2080 0
+263   2080 0
+287   2080 0
+311   2080 0
+336   2080 0
+360   2080 0
+387   2080 0
+414   2080 0
+445   2080 0

timelines/Scala/run_4.tsv

@@ -0,0 +1,18 @@
+9   2048 0
+33   2048 0
+54   2048 0
+79   2048 0
+103   2048 0
+126   2048 0
+149   2048 0
+170   2048 0
+193   2048 0
+231   2048 0
+254   2048 0
+278   2048 0
+302   2048 0
+326   2048 0
+350   2048 0
+376   2048 0
+402   2048 0
+421 0 0