feat: add map benchmark scripts for lua, python, ruby, and wren

Add four new benchmark scripts (maps.lua, maps.py, maps.rb, maps.wren) that measure
hash map insertion, lookup, and deletion performance across 100,000 elements.
Register the new "maps" benchmark in run_bench.py with expected output 5000050000.

benchmark/maps.lua

@@ -0,0 +1,19 @@
+local start = os.clock()
+
+local map = {}
+
+for i = 1, 100000 do
+  map[i] = i
+end
+
+local sum = 0
+for i = 1, 100000 do
+  sum = sum + map[i]
+end
+io.write(string.format("%d\n", sum))
+
+for i = 1, 100000 do
+  map[i] = nil
+end
+
+io.write(string.format("elapsed: %.8f\n", os.clock() - start))

benchmark/maps.py

@@ -0,0 +1,20 @@
+from __future__ import print_function
+
+import time
+
+map = {}
+
+start = time.clock()
+
+for i in range(1, 100001):
+  map[i] = i
+
+sum = 0
+for i in range(1, 100001):
+  sum = sum + map[i]
+print(sum)
+
+for i in range(1, 100001):
+  del map[i]
+
+print("elapsed: " + str(time.clock() - start))

benchmark/maps.rb

@@ -0,0 +1,19 @@
+map = Hash.new
+
+start = Time.now
+
+for i in (1..100000)
+  map[i] = i
+end
+
+sum = 0
+for i in (1..100000)
+  sum = sum + map[i]
+end
+puts sum
+
+for i in (1..100000)
+  map.delete(i)
+end
+
+puts "elapsed: " + (Time.now - start).to_s

benchmark/maps.wren

@@ -0,0 +1,19 @@
+var start = IO.clock
+
+var map = {}
+
+for (i in 1..100000) {
+  map[i] = i
+}
+
+var sum = 0
+for (i in 1..100000) {
+  sum = sum + map[i]
+}
+IO.print(sum)
+
+for (i in 1..100000) {
+  map.remove(i)
+}
+
+IO.print("elapsed: ", IO.clock - start)