test(signal, networkinfo)!: issue164 - Add unit tests

[isuPatches]

Description

• Adds unit tests for wisefy:signal module
• Adds unit tests for wisefy:networkinfo module

Issue Link(s)

#164

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Please also list any relevant details for your test configuration.

Unit tests included

Screenshots (if appropriate)