v0.3-clgt

• Support if condition, for loop, while loop.
• Support function call ( <= 6 input parameters).
• Support bitwise | & ^ and logic operator || &&

$ cat sample/fibonacci.c
int main()
{
    int pre = 1;
    int cur = 1;
    int n = 15;

    for (int i = 2; i < n; i=i+1) {
        int t = cur;
        cur = cur + pre;
        pre =  t;
    }

    printf("So fibonacci in order %d is : %d\n",n,cur);

    return 0;
}
$ ./meo sample/fibonacci.c
$ ./a.out
So fibonacci in order 15 is : 610
$