This allows reading multiple structs from the same file.

I had to do this because I needed some fixes on a newer version of
dear ImGui. That version also removed gl3w in favor of glfw. I
realized I could use galogen instead because I'm already generating it
for OpenGL.cake. This is much cleaner now.

* Create window as 75% of the primary display size
* Only set DPI scaling to 1.6 if the display is greater resolution
than 1440p
* Make background darker
* Tell Windows that we are DPI-aware

I was getting unnecessary rebuilds before this change.

I'm not sure why I need to do this, because a tool reported my PC
supports 4.6.

I really need to pull these from the environment...

* Send the key's address, not the address of the pointer to key
* Move some closes and frees around to be less likely to be forgotten

Their implementations were similar enough. I also clarified strdict
required mode

Lots of pointer confusion caused by everything being void*. The
problem ended up actually being bad keys passed in, which I discovered
only after slowing down and really reading what was going on.

* Fix memory leak on new-element
* Change nested path to single path call
* Fix dict-free-void to free the block, not the header

* Fix introspect-test-struct to actually return false on failure

Valgrind was very helpful in pointing out what could have been a very
subtle bug.

* Reformatted file
* Fix introspect free to free arrays properly

* Got very confused by pointer schenanigans, but resolved them
* Added introspect-test-struct to make it easier to exercise test
suite on new types
* Exposed useful introspect read functions

* Any dynarray of structs now be written with Introspection. I'm
really pleased with how easy it was to implement this
* Added struct-size which was essential for this application
* write-introspect-struct-s-expr now returns success/failure

* AutoTest now forward-declares test functions rather than having to
import the module. This is much simpler, plus made it possible to add
ProfilerAutoInstrument to the test set (automatically instrumenting
all tests)
* Fix off-by-one error in read-introspect-struct-s-expr. I'm not sure
why this didn't fail earlier

Because there are many questions to ask for pointers to things (is it
owned or unowned? How do I create it? Is it a deep compare or shallow?
etc.), these always require an override handler to be defined.

Note that the example handlers don't really compare the pointer in
this case, they just write null.

This should make it possible to reference type metadata defined in
files other than the current module.

This makes it easier to import modules which use introspection without
also having to import introspection. It's a bit more convenient to
already have that pointer as well.

* Reorder handlers to match function order in file
* Convert write-s-expr handler to do dispatch outside the override
handler. This matches the other handlers
* Reordered handler signatures and arguments for consistency
* Clean up outdated TODOs and dead code
* Test arrays of overridden types

I also cleaned up a few things.

The tests are now passing! There's definitely cleanup needed,
especially around how arrays should behave when override is present.

This has definitely gotten pretty meaty, which is partly the fault of
lack of features. It's not too awful though.