Refactor data types

[S3mprGumb1]

Change arrays to ArrayLists to drastically improve performance

Arrays in PowerShell are of fixed length at creation, as such, using the += operator to append an element to the array causes the entire array to be rebuilt in memory. This significantly increases the time complexity of the append operation, from O(1) to O(n).

Switching data structures from Arrays to ArrayLists would solve this issue, reducing the time complexity down to O(1), while leaving the memory space complexity roughly the same, where as using a HashTable would increase the space used to store the data structure.

[S3mprGumb1]

Implemented for the filter log struct, as it was the only large log struct which used the append function.