Basic wide string support

[bb010g]

This also ensures proper logging (including on exception) and adds some more standard functions from glibc and msvcrt.

[nshp]

Nice! Looking great on first glance. I'll try to do some testing tonight/tomorrow.

[nshp]

On my machine with a linux-armv7 binary, I get:

Traceback (most recent call last):
  File "...plugins/binaryninja-printf/__init__.py", line 553, in run
    func_type, func_decl_name = bv.parse_type_string(func_decl)
  File "...python/binaryninja/binaryview.py", line 6687, in parse_type_string
    raise SyntaxError(error_str)
SyntaxError: error: string.hpp:1:66 unknown type name 'rsize_t'

I guess the plugin should either add a rsize_t typedef if it isn't already present, or fall back to regular size_t?

[alexrp]

I think it would be reasonable to just use size_t. AFAIK rsize_t is equivalent to that on all platforms that have those functions anyway; it only exists because the C standard says it should exist. Alternatively, could ask the BN devs if they want to support rsize_t natively in their type parser like they do for size_t, but ehh.

I think it would be good to avoid adding types to the user's BNDB if at all possible.