Talisman now supports darwin/arm64

Code changes

• Code improvements thanks to @teleivo , @arshchimni , @tinamthomas
• Refactorting of talismanrc related code to differentiate between hook-mode config and scan-mode config

New OS's supported by installation scripts

• darwin/arm64 (shout out to @ssannidhi-palo for bringing this to our notice)
• windows server2012 (thanks to @g-prasanth)