Patch method is not implemented

[aghasi]

Prerequisites

• [yes] Have you tested the operation in the API directly?
• [yes] Do you have the latest SDK version?
• [yes] Review the compatibility matrix before opening an issue.

Describe the bug
Cisco ISE 3.2 and later supports patch method which set a specific attribute of resource (e.g. NetworkDevice) instead of all them (which is done by put method). The patch method and related functions are not implemented at all, so your library is not fully compatible with ISE 3.2 and later.

Expected behavior
Existence of some method to patch resources like NetworkDevice.

Environment (please complete the following information):

• ISE version and patch: 3.2 and later
• Python version: 3.9
• SDK version: 2.2.3
• OS version: Microsoft Window 10