Added Email resource code

Support for emails with resources. Only resources that are actually used are included, to avoid the .bin file attachments in Outlook.
Force header resources to be included for email

Resources should default to 0 uses in case they are not used in formatting rules. Need to force it to include the headers with -used parameter
Update Style.ps1

Resources should default to 0 uses in case they are not used in formatting rules. Need to force it to include the headers with -used parameter
Update Style.ps1

Resources should default to 0 uses in case they are not used in formatting rules. Need to force it to include the headers with -used parameter
Merge pull request #136 from Sneddo/email-resources

Email resources