Add Run tfsec -action to right-click -menu & add tfsec options to set…

[psikala]

…tings

Hi 👋

This PR adds -following features & fix some bugs:

• Add Run tfsec to right-click -menu for quick access
• Pass directory to TfsecBackgroundRunTask
  • Allows to run tfsec against different directories
  • Directory is concluded by checking selected file -type
  • If it's UNKNOWN (folder) -> Pass selected path, otherwise pass parent -directory
• Add tfsec options to settings, which allows user's to pass program args #7
• Increase divider -size to 2px. This fixes #5 (at least in my computer :) )

[CLAassistant]

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