Suggestions: add a weapon screenshot feature a la BL3

Suggestion: add a weapon screenshot feature a la BL3, takes a cropped screenshot of the current weapon or comparison, also copying to clipboard

Since people in 2023 still seem unable to press Win+Shift+S (or excl. fullscreen interfering), F12 or any of the PrintScreen combos, this would be helpful to avoid seeing all the dust, hairs, smudges on blurry messy phone pics.