Add short-circuiting logic for Expression AND/OR operators

[aaronp64]

Added OperatorNode::should_short_circuit method, to use in Expression::_execute to return early when possible.

Fixes #107025

Tested with gdscript below:

func _ready() -> void:
	test_expr("true_func() and false_func()")
	test_expr("false_func() && false_func()")
	test_expr("false_func() || false_func()")
	test_expr("true_func() or false_func()")

func true_func() -> bool:
	print("true_func() called")
	return true

func false_func() -> bool:
	print("false_func() called")
	return false
	
func test_expr(p_expr: String):
	var test_name: String = p_expr.replace("_func()", "")
	print("%s\n----------" % [test_name])
	var expr = Expression.new()
	expr.parse(p_expr)
	var result = expr.execute([], self)
	print("Result: %s\n" % [result])

old:

true and false
----------
true_func() called
false_func() called
Result: false

false && false
----------
false_func() called
false_func() called
Result: false

false || false
----------
false_func() called
false_func() called
Result: false

true or false
----------
true_func() called
false_func() called
Result: true

new:

true and false
----------
true_func() called
false_func() called
Result: false

false && false
----------
false_func() called
Result: false

false || false
----------
false_func() called
false_func() called
Result: false

true or false
----------
true_func() called
Result: true