Compatibility with exotic industries

[DrewMartin]

Exotic industries made a few changes that either made extended spidertron tech too close together, or broke it completely.

Exotic industries removed the vanilla beacons in favor of two others: cooled beacons (ei_copper-beacon), available around the same time as vanilla beacon, and compact beacons (ei_iron-beacon), available later. It also pushed the portable fusion reactor much further down the tree but added the personal nuclear reactor, a weaker version available earlier (ei_personal-reactor).

Changes:

Spidertron MK2

• Pushed down one stage further on the tech tree than the vanilla spidertron
• Changes ingredients: portable fusion reactor to personal nuclear reactor, and vanilla beacon to cooled beacon

Ghost Weaver

• Pushed down one stage further on the tech tree, to the same place as MK2

Immolator

• Pushed down one stage further on the tech tree, to the same place as MK2
• Changes ingredients: portable fusion reactor to personal nuclear reactor

Spidertron MK3

• Moved even further down the tech tree, after portable fusion reactor and tier 5 modules (which are both one stage after the MK 2 was available)
• Changes ingredients: Vanilla beacon to compact beacon (the later beacon), and the tier 3 speed and efficiency modules to tier 5

I modified the individual ingredients in recipes to swap out for the new ones rather than completely redefining the recipes which will hopefully improve compatibility with other mods that make recipe changes.

[stefanaonx]

Looks good. Going to merge and pull the code to test it locally. After testing, gonna commit the changelog and add it to the factorio site.