set windows installer custom setup font to white

The Custom Setup dialog was displaying its title and description text to
the default black for font color. Set it to white here, so that the text
is legible on the dark banner background.

Signed-off-by: Robb Kidd <robb@thekidds.org>

omnibus/resources/chefdk/msi/localization-en-us.wxl.erb

@@ -9,6 +9,9 @@
   <String Id="LicenseAgreementDlgTitle">{\WixUI_Font_Title_White}End-User License Agreement</String>
   <String Id="LicenseAgreementDlgDescription">{\WixUI_Font_Normal_White}Please read the following license agreement carefully</String>
 
+  <String Id="CustomizeDlgTitle">{\WixUI_Font_Title_White}Custom Setup</String>
+  <String Id="CustomizeDlgDescription">{\WixUI_Font_Normal_White}Select the way you want features to be installed.</String>
+
   <String Id="InstallDirDlgTitle">{\WixUI_Font_Title_White}Destination Folder</String>
   <String Id="InstallDirDlgDescription">{\WixUI_Font_Normal_White}Click Next to install to the default folder or click Change to choose another.</String>