Torches can be placed on transparent blocks, technical blocks, slabs

When an opaque block is placed with a one block-gap, we can place torches on tranparent blocks and non complete blocks : glowstone, sea lantern, ice and slabs, rails, pistons, repeater, buttons, plates, trapdoors, fence gate, lever, leaves, chests, saplings, etc..
Placing a block next to the transparent and adding a torch update and drop the torches.
Related to MC-57714 "Placing torches on other torches"