I expect that we will not want to retain the original copy of a Card
after merging, cutting, rotating, etc. This function signature says that
the value moves into the method and goes away. If this becomes an
annoyance, then we change it.
The UI parts will end up in "widgets.rs". Buttons, labels, etc.
The "contsants.rs" module is meant to have compile-time configurables.
Bevy's reflection abilities make it possible to alter these at runtime,
which means this module will actually have the startup defaults rather
than true program constants.
Do some quick checks to make sure the merging function works the way we
expect. This also records how some edge cases will be handled, such as
merging two triangles.
Enable dynamic linking for faster cycle time during development. This
should be turned off for release, and *must* be turned off for WASM.
Also some optimization levels so the engine runs acceptably during
debug.
