feat(balance): rebalance plate armor coverage and crafting materials

[AutumnNova]

Purpose of change (The Why)

Full (metal and superalloy) plate armor requires almost more than double its weight in metal, which is both a bit too much in terms of material costs and also a very high material loss when crafting
Which along with it being only 95% coverage makes it not that worthwhile to go to the effort to craft

Describe the solution (The How)

Increase ornamental/regular metal/superalloy plate to 100% coverage (carbon armor remains at 95%)
Reduces crafting costs for ornamental plate from 30 steel/superalloy to 22
(ornamental steel plate armor weighs 18kg)

Reduces crafting costs for light plate from 20 steel lump/superalloy to 14
(light steel plate weighs 11kg)

Also reduces crafting reqs of the cuirass from 8 steel/alloy to 6 and leg/arm guards from 6 to 4, to match the light plate crafting reqs

Describe alternatives you've considered

Make carbon armor 100% coverage

Reduce values so the material costs match the weight of the item exactly?

Also reduce the blacksmithing_advanced charge count? (Not really sure what Id put it at, suggestions welcome)

Reduce the skill reqs? Personally I think 10 fabrication is just fine as it gives it an interesting enough difference compared to some of the other armors that require high levels of both tailoring and fabrication

Testing

Did some math, checked the numbers look fine ingame

Additional context

Offered as an alternative to #8229, that's more inline with what I personally would like to see in terms of game balance

Checklist

Mandatory

• I wrote the PR title in conventional commit format.
• I ran the code formatter.
• I linked any relevant issues using github keyword syntax like closes #1234 in Summary of the PR so it can be closed automatically.
• I've committed my changes to new branch that isn't main so it won't cause conflict when updating main branch later.

[Zireael07]

As a medieval armor buff, I don't think any plate armor should be 100% coverage. Superalloy whatever, it's the same basic armor idea, just newer materials

[chaosvolt]

I guess is prolly fine awawa.

Ideally we'd have something like 100% coverage of mail or leather and 90-95% coverage of steel plate, but I think that'd need DDA ports and even then it'd be overcomplicated to specify that.