Resize Hardtack into Hardtack Crackers

[Maleclypse]

Summary

None

Purpose of change

As part of #74874 this PR will increase the size of hardtack made into appropriately sized crackers. 7.6 cm x 7.6 cm x 1.26 cm.
Also includes recipes to make bite sized chunks of hardtack from crackers which age faster considering the difference between area and volume in the two sizes.

Describe the solution

Adds recipes and adds an item.

Describe alternatives you've considered

Testing

Additional context

[Terrorforge]

A piece of hardtack this size should only weigh 71 grams. Here's an article where they weighed a 3x3-inch piece of hardtack at 2.5 ounces.

This has been wrong for a long time. As discussed in #61312 many bread products have wacky density, largely due to past misuse of the stack_size trait. Fixing that is of course out of scope for this PR, but for reference here's an article discussing the density of bread more generally; at around 1 gram per cubic centimetre, hardtack is among the densest.

[Maleclypse]

A piece of hardtack this size should only weigh 71 grams. Here's an article where they weighed a 3x3-inch piece of hardtack at 2.5 ounces.

This has been wrong for a long time. As discussed in #61312 many bread products have wacky density, largely due to past misuse of the stack_size trait. Fixing that is of course out of scope for this PR, but for reference here's an article discussing the density of bread more generally; at around 1 gram per cubic centimetre, hardtack is among the densest.

Good catch! Thanks!