Add vertical alignment tags to RichTextLabel

[nonunknown]

Describe the project you are working on

A Multiplayer game.

Describe the problem or limitation you are having in your project

BBCode currently has the center tag but it only align the text in horizontal.

Describe the feature / enhancement and how it helps to overcome the problem or limitation

The solution would be making 2 new tags:

[center]text[/center] -> will align the text in the RichTextLabel Horizontally and Vertically
[hcenter]text[/hcenter] -> will align the text in the RichTextLabel Horizontally only
[vcenter]text[/vcenter] -> will align the text in the RichTextLabel Vertically only

Describe how your proposal will work, with code, pseudo-code, mock-ups, and/or diagrams

HCENTER TAG

VCENTER TAG

CENTER TAG

If this enhancement will not be used often, can it be worked around with a few lines of script?

as far as I know this cant be made via gdscript

Is there a reason why this should be core and not an add-on in the asset library?

basic functionality