Add figures for box lines about figures

[sindresorhus]

👍 To the person that ends up submitting a PR for this, good luck naming all of these.

[ehmicky]

I think we can use system of prefixes and suffixes (although I agree the names will most likely be verbose).

[ehmicky]

Proposal for naming:

• line, e.g. ━
• lineVertical, e.g. ┃
• lineDownRight, lineDownLeft, lineUpRight or lineUpLeft, e.g. ┏ ┓ ┗ ┛
• lineUpDownRight, lineUpDownLeft, lineDownLeftRight or lineUpLeftRight, e.g. ┣ ┫ ┳ ┻
• lineUpDownLeftRight, e.g. ╋
• lineCross for ╳
• lineBackslash for ╲
• lineSlash for ╱

This can be followed by "variants":

• nothing/empty, e.g. │
• Bold, e.g. ┃
• Double, e.g. ║
• Dashed0, Dashed1, ..., Dashed15 for all dashed variants, e.g. ┇

When a symbol combines several variants, they are appended to each part of it. For example, lineUpBoldDownLeftBoldRight for ╃

I would also suggest leaving out ‾ (U-203e) as it is not centered and not really meant as a box line.

What do you think?

[sindresorhus]

That sounds good to me.

[sindresorhus]

I would also suggest leaving out ‾ (U-203e) as it is not centered and not really meant as a box line.

👍

[ehmicky]

Done at #70.