[3.14] gh-125434: Display thread name in faulthandler on Windows (#142011)

[3.14] gh-125434: Display thread name in faulthandler on Windows (#142011)

* gh-125434: Display thread name in faulthandler on Windows (#140675)

(cherry picked from commit 313145eab5f6ebca21d2e3c80c130980d3bcdc88)

* gh-125434: Fix non-ASCII thread names in faulthandler on Windows (#140700)

Add _Py_DumpWideString() function to dump a wide string as ASCII. It
supports surrogate pairs.

Replace _Py_EncodeLocaleRaw() with _Py_DumpWideString()
in write_thread_name().

(cherry picked from commit 80f20f58b2b8368ed8451a0161036dda94d8d33a)