feat: add cpptrace for better stack traces output

[kdrienCG]

This PR adds cpptrace as a new third party library to have more powerful stack traces outputs from thrown exceptions in GEOS.

The main benefit of this library is the output of the complete unwinding, even in STL, of errors (addressed partially with <stacktrace> from C++23)

Both methods, with uberenv/Spack and the older scripts/config-build.py, are supported.

On top of that, an option has been added to select the desired backend used by cpptrace to gather symbols (between libdwarf, libbacktrace and addr2line).

Via uberenv/Spack:

./scripts/uberenv/uberenv.py --spec "+cpptrace ^cpptrace symbols=libdwarf" ... # or libbacktrace, or addr2line

Via scripts/config-build.py:
as a command-line argument:

python scripts/config-build.py \
	-hc ../GEOS/host-configs/your-platform.cmake \
	-bt Release \
	-DENABLE_CPPTRACE=ON \
	-DCPPTRACE_SYMBOLS_BACKEND=libbacktrace # or without this line to use the default backend

or directly in the host-config:

set(ENABLE_CPPTRACE          ON           CACHE BOOL   "")
set(CPPTRACE_SYMBOLS_BACKEND libbacktrace CACHE STRING "") # or without this line to use the default backend

More info on symbols backends: https://github.com/jeremy-rifkin/cpptrace#library-back-ends