Fix build with Microsoft Visual C++, Fix gfxhook and felica issue (#48)

I just wanna say that It is a SHAME that a Windows ONLY project was not able to build without MINGW
Also where's the missing `3mpxsc.h` in diva hook?

This also fixes the window size issue from hook_CreateWindowExA in gfxhook
And Fixes felica issue as described in #45

Reviewed-on: Dniel97/segatools#48
Reviewed-by: Dniel97 <dniel97@noreply.gitea.tendokyu.moe>
Co-authored-by: GEEKiDoS <geek_ds@foxmail.com>
Co-committed-by: GEEKiDoS <geek_ds@foxmail.com>

meson.build

@@ -13,7 +13,6 @@ add_project_arguments(
     '-DWIN32_LEAN_AND_MEAN',
     '-D_WIN32_WINNT=_WIN32_WINNT_WIN7',
     '-DMINGW_HAS_SECURE_API=1',
-    '-Wno-unused',
     # '-ggdb',  # Add debug information
     language: 'c',
 )
@@ -24,6 +23,7 @@ if cc.get_id() != 'msvc'
     add_project_arguments(
         '-ffunction-sections',
         '-fdata-sections',
+        '-Wno-unused',
         language: 'c',
     )