Suggestion to use c-style `for` loop

Hi, I wish to suggest the use of c-style `for` loop.

For example:

```c
for mut i := 0; i < 10; i++
{

}
```

It can also do something like this:


```c
mut i := 0;
for ; i < 10; i++
{

}
```

or have multiple instances:

```c
for mut i := 0, mut x := 10; i < 10, x < 100; i++, x *= 2
{

}
```