feat(Order/KrullDimension): some lemmas relating Order.height, Order.coheight and krullDim

[xyzw12345]

This PR mostly consists of the lemmas related to Order.height, Order.coheight, and krullDim appearing in the process of working on PR #21041. We thought that the lemmas may be useful to other PRs (like #22127 perhaps?), so we decided to open it into a separate PR to accelerate the review process.

---

[github-actions]

PR summary 0805b2467c

Import changes for modified files

Dependency changes

File	Base Count	Head Count	Change
Mathlib.Order.KrullDimension	635	638	+3 (+0.47%)

Import changes for all files

Files	Import difference
Mathlib.Order.KrullDimension	3

---

Declarations diff

+ coheight_eq_krullDim_Ici
+ finiteDimensionalOrder_iff_krullDim_ne_bot_and_top
+ height_eq_krullDim_Iic
+ krullDim_isSimpleOrder
+ nonempty_of_finiteDimensional
+ nonempty_of_finiteDimensionalType

You can run this locally as follows

## summary with just the declaration names:
./scripts/declarations_diff.sh <optional_commit>

## more verbose report:
./scripts/declarations_diff.sh long <optional_commit>

The doc-module for script/declarations_diff.sh contains some details about this script.

---

No changes to technical debt.

You can run this locally as

./scripts/technical-debt-metrics.sh pr_summary

• The relative value is the weighted sum of the differences with weight given by the inverse of the current value of the statistic.
• The absolute value is the relative value divided by the total sum of the inverses of the current values (i.e. the weighted average of the differences).