Fixes for building x86 in Visual Studio for non-windows OS

[dgarske]

Description

Fixes for building x86 in Visual Studio for non-windows OS. Adds new build option WOLFSSL_NOT_WINDOWS_API for platforms where the target OS is not Windows, but compilation is done on Windows/Visual Studio.

Fixes ZD 18465

Testing

Checklist

• added tests
• updated/added doxygen
• updated appropriate READMEs
• Updated manual and documentation

[dgarske]

Retest this please. python failed on keyword "warnings", not failure.

[dgarske]

Retest this please.

Python port:

FAIL: test_parse_all_sans (test.test_ssl.BasicSocketTests)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/tmp/workspace/PRB-python-port/osp/Python/Python-3.8.14/Lib/test/test_ssl.py", line 560, in test_parse_all_sans
    self.assertEqual(p['subjectAltName'],
AssertionError: Tuples differ: (('Re[151 chars]), ('DNS', 'allsans'), ('email', 'user@example[175 chars],)))) != (('Re[151 chars]), ('othername', '<unsupported>'), ('othername[239 chars],))))

First differing element 5:
('DNS', 'allsans')
('othername', '<unsupported>')

Second tuple contains 2 additional elements.
First extra element 8:
('email', 'user@example.org')

  (('Registered ID', 'surname'),
   ('IP Address', '0:0:0:0:0:0:0:1'),
   ('IP Address', '127.0.0.1'),
   ('URI', 'https://www.python.org/'),
   ('DNS', 'www.example.org'),
+  ('othername', '<unsupported>'),
+  ('othername', '<unsupported>'),
   ('DNS', 'allsans'),
   ('email', 'user@example.org'),
   ('DirName',
    ((('countryName', 'XY'),),
     (('localityName', 'Castle Anthrax'),),
     (('organizationName', 'Python Software Foundation'),),
     (('commonName', 'dirname example'),))))

----------------------------------------------------------------------

Ran 163 tests in 10.504s

FAILED (failures=1, skipped=18)
1 test failed again:
    test_ssl

== Tests result: FAILURE then FAILURE ==

1 test failed:
    test_ssl

1 re-run test:
    test_ssl

Total duration: 21.2 sec

[dgarske]

Failures are not related to this PR. @douzzer please review when you can. Thank you

[dgarske]

Retest this please

[dgarske]

Retest this please

[dgarske]

Retest this please