Applied Energistics 2: versions and changes

Ported from AE2 15.4.12 (Fabric); 15.4.17 is this port's own version number, not an AE2 release. Built and tested on Horizon commit 6560641.

- ME P2P tunnels now work as AE2's: a main node on the host and an outer node on the block in front. The carried network goes in at the front and both hosts must share a network, so **a build that carried a network host to host needs rewiring**. The nested tunnel error is AE2's own rule, per grid.
- Other mods' machines in a job's time left: Iron Furnaces and Hostile Neural Networks tell AE2 how long their machines take, so the time left is right from the first craft.
- Crafting time left is closer: tested 0.3 to 1.0% off on average across furnace, factory, simulation chamber and assembler jobs, 1.8% at worst.
- The guide key follows Options > Mods and defaults to W; the tooltip hint shows the bound key.
- Terminal tooltips show the stack's whole tooltip; middle click on a craftable opens the amount dialog.
- Power, channels and crafting time closer to AE2's.
- Works with JEI 0.1 and 0.2.

First release on the registry, ported from AE2 15.4.12 (Fabric). 15.4.14 is this port's own version number, not an AE2 release.

Built for Horizon commit 66f3981. It compiles on that Horizon but wasn't run there; it was last tested on 6475f62.

One file: the blocks, items and textures, and the JEI and Jade integrations, are all in this mod. This replaces the earlier submissions, and fixes the ae2:debug vulnerability reported on them, along with others found by further reviews, and many defects from an outside review (PLAN.md, Rounds 24 to 26).