Add the ability to duplicate UI elements through code.

[MidnightTokyo]

Add the ability to duplicate UI elements through code. There is some element with name row_{i} and child element text_{i}, we need the ability to send the client information, how many duplicates should be created (row_0 with text_0, row_1 with text_1 etc), and then send text to them as usual. There are often cases when you need a large number of elements or unknown in advance and it is not convenient to hardcode them.