Add sizeof test

test/sizeof.w12

@@ -0,0 +1,33 @@
+struct BigStruct {
+	name: [char],
+	number: int,
+	number2: int,
+}
+
+struct BiggerStruct {
+	character: char,
+	big: BigStruct,
+}
+
+struct SmallStruct {
+	value: int,
+}
+
+
+fn main() -> int {
+	printf("Size of int: %u\n", sizeof int);
+	printf("Size of uint: %u\n", sizeof uint);
+	printf("Size of float: %u\n", sizeof float);
+	printf("Size of [char]: %u\n", sizeof [char]);
+	printf("Size of [int]: %u\n", sizeof [int]);
+	printf("Size of bool: %u\n", sizeof bool);
+	printf("Size of int*: %u\n", sizeof int*);
+	printf("Size of bool*: %u\n", sizeof bool*);
+	printf("Size of BigStruct*: %u\n", sizeof BigStruct*);
+	printf("Size of SmallStruct*: %u\n", sizeof SmallStruct*);
+	printf("Size of BigStruct: %u\n", sizeof BigStruct);
+	printf("Size of BiggerStruct: %u\n", sizeof BiggerStruct);
+	printf("Size of SmallStruct: %u\n", sizeof SmallStruct);
+
+	return 0;
+}