[suggestion] allow input of modded blocks

[milkev]

What I Want
Input Modded Block ID's (such as exnihilosequentia:dust) in locations where the player is prompted to select a block like 'sand'.

What Currently Happens
Type in modded block ID, press enter, it reverts back to the previous settings instead of saving the input block ID.

Why
Mod compatability.

[syldium]

The referenced commit allows you to add block names to the list by writing the full block identifier. I keep this issue open for block state support.