Display memory in bytes instead of MB for consistency

- Changed output to show bytes instead of MB
- Updated header to show 'Minne (bytes)'
- Better for comparing memory usage across all languages
- Memory data already collected in bytes from ps command

timelines/Kotlin/run_1.tsv

@@ -1,3 +1,4 @@
 9 2048000 0
-35 2048000 0
-58 2048000 0
+23 2048000 0
+37 2048000 0
+51 2048000 0

timelines/Kotlin/run_2.tsv

@@ -1,3 +1,4 @@
 9 2048000 0
-34 2048000 0
-54 0 0
+21 2048000 0
+36 2048000 0
+46 0 0

timelines/Kotlin/run_3.tsv

@@ -1,2 +1,4 @@
-9 2048000 0
-34 2048000 0
+8 2048000 0
+23 2048000 0
+36 2048000 0
+45 0 0

timelines/Kotlin/run_4.tsv

@@ -1,3 +1,4 @@
-9 2048000 0
-33 2048000 0
-55 0 0
+8 2048000 0
+21 2048000 0
+35 2048000 0
+45 0 0