🚑 Fix segfaulting cxa allocation

🐛 Fix breaks with demo building

🐛 ACTUALLY Fix undefined references in GCC

The error looks like this:

```
arm-none-eabi/picolibc/arm-none-eabi/lib/thumb/v7e-m+fp/hard/libc.a(libc_stdlib_abort.c.o): in function `abort':
newlib/libc/stdlib/abort.c:63: undefined reference to `_exit'
arm-none-eabi/lib/thumb/v7e-m+fp/hard/libstdc++.a(vterminate.o): in function `__gnu_cxx::__verbose_terminate_handler()':
vterminate.cc:(.text._ZN9__gnu_cxx27__verbose_terminate_handlerEv+0xf4): undefined reference to `_impure_ptr'
arm-none-eabi/picolibc/arm-none-eabi/lib/thumb/v7e-m+fp/hard/libc.a(libc_signal_signal.c.o): in function `raise':
newlib/libc/signal/signal.c:151: undefined reference to `_exit'
```

The solution, have conan add these flags to the link stage of the
binary:

```
-Wl,--whole-archive <insert_archive_file.a> -Wl,--no-whole-archive
```

The GCC linker will find unknown symbols and resolve them by searching
the .a archive files. If it doesn't find one, then it complains. Here is
the problem. Because we never call any of these functions, the linker
never searches for them. Then at final link stage, it finds some symbols
like abort() that calls _exit(), realizes it never saw it in any of our
code, then yells at us.

Now I'm not sure why it doesn't try to find `_exit` through `abort`. But
with `whole-archive` it forces all of the symbols to be in the symbol
table to be added to the linker's symbol list ensuring that they are
available for resolution.

:arrow_up: to 1.0.0 because I want to get the full benefit of semver
version control

🐛 Fix undefined references in GCC

GCC needs a call to throw to force it to link in the exception handling
code. For code size, this a great, but the linker then complains that
the -Wl,wrap= commands are undefined. Those undefined symbols result in
additional functions like _exit not being defined causing a few
linker error messages.

- ⬆️ 0.0.2

✨ Add initial APIs for allocation & termination