feat: enable backward-cpp

[fzakaria]

This enabled the repository backward-cpp for this repository.
It does so by adding: elfutils (libelf) + libdwarf.

Extra care was taken for libdwarf because recent versions have changed the API unfortunately as seen in bombela/backward-cpp#298

❯ ./bazel-bin/third_party/backward-cpp/suicide
Running suicide application
Stack trace (most recent call last):
#3    Object "/usr/local/google/home/fmzakari/.cache/bazel/_bazel_fmzakari/2ed7345d389cf32aae8898775744d0ac/execroot/__main__/bazel-out/k8-dbg/bin/third_party/backward-cpp/suicide", at 0x26902d, in 
#2    Object "/lib/x86_64-linux-gnu/libc.so.6", at 0x7f12a63f2244, in __libc_start_main
#1    Object "/lib/x86_64-linux-gnu/libc.so.6", at 0x7f12a63f2189, in 
#0    Source "/proc/self/cwd/third_party/backward-cpp/suicide.cc", line 9, in int main() [0x26912f]
          6: int main() {
          7:   std::cout << "Running suicide application" << std::endl;
          8:   int* ptr = nullptr;
      >   9:   *ptr += 1;
         10:   return 0;
         11: }
Segmentation fault (Address not mapped to object [(nil)])
[1]    3672545 segmentation fault  ./bazel-bin/third_party/backward-cpp/suicide

(it has nice coloring)