Apply a simple heuristic to provide the user with more
specific information regarding which vcredist package
might not have been found on their system.
This is a common problem as different games require
different versions and different versions of windows
and installations might already come with some versions
already pre-installed.
Also improve the readme regarding that and provide links
to all versions that are required by one game or another
today.
Because we are using mingw, we can't just use window's
dbghelp library as the symbols created are in dwarf format.
Fortunately, the dwarfstack library already provides all the
facilities to easily print very descriptive stacktraces,
including function names, file names and line numbers,
when dwarf symbols are available.
This moves the incomplete exception handling portion from
signal to a separate module as well to improve scoping.
