This is easier to type and follows the naming of Pose2d::Nearest().
Since Ellipse2d and Rectangle2d were added for the 2025 season, we don't
need to add deprecation notices.
The Raspberry Pi 5 is fast enough that we no longer need it.
```
Running ./build/DAREBench
Run on (4 X 2400 MHz CPU s)
CPU Caches:
L1 Data 64 KiB (x4)
L1 Instruction 64 KiB (x4)
L2 Unified 512 KiB (x4)
L3 Unified 2048 KiB (x1)
Load Average: 0.47, 0.72, 0.45
***WARNING*** CPU scaling is enabled, the benchmark real time measurements may be noisy and will incur extra overhead.
-------------------------------------------------------------------------------
Benchmark Time CPU Iterations
-------------------------------------------------------------------------------
DARE_WPIMath_Dynamic 34.4 us 34.4 us 20315
DARE_WPIMath_NoPrecondChecks_Dynamic 21.7 us 21.7 us 32266
DARE_WPIMath_Static 15.2 us 15.2 us 45878
DARE_WPIMath_NoPrecondChecks_Static 7.84 us 7.84 us 89316
DARE_SLICOT 79.4 us 79.4 us 8789
DARE_Drake 34.9 us 34.9 us 20074
```
Java generics are too limited to do what we need. This refactors generic code previously in Unit and Measure into unit-specific classes that can have unit-safe math operations (notably, times and divide) that can return values in known units instead of a wildcarded Measure<?>.
Unit-specific measure implementations are automatically generated by ./wpiunits/generate_units.py, which generates generic interfaces and mutable and immutable implementations of those interfaces. These make up the bulk of the diff of this PR (approximately 9300 LOC).
This also adds units for angular and linear velocities, accelerations, and momenta; moment of inertia; and torque.
This makes it easier to define schemas when the type name is non-trivial (e.g., templated structs).
This is breaking for a) custom struct implementations and b) anything calling `wpi::Struct<T>::GetTypeString(info...)` in C++ directly. In both cases, it's a simple translation: For A, rename `GetTypeString()` to `GetTypeName()` and remove the struct: at the beginning, and for B, use `wpi::GetStructTypeString<T>(info...)` instead.
Currently, a max iteration heuristic is used to determine when a spline
is malformed. Instead, we can report a failure immediately if dx and dy
are too small, because the heading won't be accurate either.
Fixes#6826.
