msvc-14.25-x64_unity_xtra warnings for Arx in branch master

• C4201 (1 | =)
• C4324 (2 | =)
• C4459 (3 | =)
• C4996 (7 | =)
• C4456 (76 | =)
• C4244 (94 | =)
• C4267 (279 | =)
• C4127 (404 | =)