Update operator logic `gt` and `lt` to `gte` and `lte`

[lvrfrc87]

Based on discussion: https://github.com/networktocode-llc/netcompare/pull/63#discussion_r895696463

As it is now, operator check has grater than - gt and lower than - lt types. Would nice also to have greater or equal than - gte as well as lower or equal than - lte