Implement --exec flag and PyAutoGUI-compatible automation API

- Add --exec flag to execute multiple scripts before main program
- Scripts are executed in order and share Python interpreter state
- Implement full PyAutoGUI-compatible automation API in McRFPy_Automation
- Add screenshot, mouse control, keyboard input capabilities
- Fix Python initialization issues when multiple scripts are loaded
- Update CommandLineParser to handle --exec with proper sys.argv management
- Add comprehensive examples and documentation

This enables automation testing by allowing test scripts to run alongside
games using the same Python environment. The automation API provides
event injection into the SFML render loop for UI testing.

Closes #32 partially (Python interpreter emulation)
References automation testing requirements

example_config.py

@@ -0,0 +1,53 @@
+#!/usr/bin/env python3
+"""
+Example configuration script that sets up shared state for other scripts
+Usage: ./mcrogueface --exec example_config.py --exec example_automation.py game.py
+"""
+import mcrfpy
+
+# Create a shared configuration namespace
+class AutomationConfig:
+    # Test settings
+    test_enabled = True
+    screenshot_interval = 5  # Take screenshot every N tests
+    max_test_count = 50
+    test_delay_ms = 1000
+    
+    # Monitoring settings  
+    monitor_enabled = True
+    monitor_interval_ms = 500
+    report_delay_seconds = 30
+    
+    # Game-specific settings
+    start_button_pos = (512, 400)
+    inventory_key = "i"
+    movement_keys = ["w", "a", "s", "d"]
+    
+    # Shared state
+    test_results = []
+    performance_data = []
+    
+    @classmethod
+    def log_result(cls, test_name, success, details=""):
+        """Log a test result"""
+        cls.test_results.append({
+            "test": test_name,
+            "success": success,
+            "details": details,
+            "frame": mcrfpy.getFrame()
+        })
+        
+    @classmethod
+    def get_summary(cls):
+        """Get test summary"""
+        total = len(cls.test_results)
+        passed = sum(1 for r in cls.test_results if r["success"])
+        return f"Tests: {passed}/{total} passed"
+
+# Attach config to mcrfpy module so other scripts can access it
+mcrfpy.automation_config = AutomationConfig
+
+print("Config: Automation configuration loaded")
+print(f"Config: Test delay = {AutomationConfig.test_delay_ms}ms")
+print(f"Config: Max tests = {AutomationConfig.max_test_count}")
+print("Config: Other scripts can access config via mcrfpy.automation_config")