[Suggestion] Implement block_state support

[YpnoZ]

With version 1.21.5, new test_blocks have been added, and they're quite useful for creating menus.

However, all blocks are derived from the same block, and their texture is only given by changing the "mode" of the "block_state."
To be able to customize the texture of this block in menus, the plugin would therefore need to support this data.

Give command example for one of the test_block :
/give @p minecraft:test_block[minecraft:block_state={mode:log}]