Add auto install of OBS-websocket plugin

[lucalas]

We need to add automatic installation of OBS websocket plugin.

Flow

• When we start application we need to check if OBS-websocket plugin is installed
  • Check could be to verify if there is "obs-websocket.dll" file inside "\obs-plugins\64bit" folder
• If not popup question to ask if they want to install plugin.
• Add settings to check if plugin is installed and if not add button to install it.