cmake: Set process code page to UTF-8 on Windows

Additionally, this change adds app manifests to targets that were
previously missing them.

cmake/windows-app.manifest.in

@@ -1,10 +1,15 @@
 <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
-<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
+<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0" xmlns:asmv3="urn:schemas-microsoft-com:asm.v3">
   <assemblyIdentity
       type="win32"
       name="org.bitcoincore.${target}"
       version="${CLIENT_VERSION_MAJOR}.${CLIENT_VERSION_MINOR}.${CLIENT_VERSION_BUILD}.0"
   />
+  <asmv3:application>
+    <asmv3:windowsSettings xmlns="http://schemas.microsoft.com/SMI/2019/WindowsSettings">
+      <activeCodePage>UTF-8</activeCodePage>
+    </asmv3:windowsSettings>
+  </asmv3:application>
   <trustInfo xmlns="urn:schemas-microsoft-com:asm.v3">
     <security>
       <requestedPrivileges>