Manage ModSecurity process in Go code

[nomeguy]

ModSecurity 3.x can be deployed manually via native or Docker ways: https://github.com/SpiderLabs/ModSecurity

CasWAF needs to use Go code to control the start/stop/configure of ModSecurity:

1. Download ModSecurity source code/Docker image
2. Modify the config of ModSecurity
3. Start/stop the process of ModSecurity
4. Do monitoring and logging for ModSecurity events

First step would be, writing a Go test to download ModSecurity and run it up