Improved and additional array utills

Now there is full type inference for the array methods.
The new array methods are:

• getOk() returns values from OkResults that exist inside a Result[]
• getError() returns error values from ErrResults that exist inside a Result[]
• findMap() returns option over the first item that matches a given mapping callback.

With array utills

Utils:

• filter_map
• get_some

Now we have options

We can:

• Create Some option
• Create None option
• Create Option from null-able types

basic results

now can:

• create results
• convert throw-able callbacks intro results