adding the parameter safe_domain in case there is a specific value

[gdraperi]

Hello,

I had a situation where safe_domain was different from the tenant and the domain and I had to setup a specific value.
https://{self.tenant_name}-my.{self.endpoint}/personal/{safeusername}_{self.safe_domain}/_layouts/15/onedrive.aspx'

I added an option to specify it and in the default case it comes back to the domain value to generate the safe domain.

[nyxgeek]

I appreciate the PR! However I believe it may be unnecessary --

The safe_domain is derived directly from the -d parameter, but the periods are replaced with underscores. If you need a different 'safe_domain', simply change the -d parameter to the domain you would like it to use, BUT be sure to specify a tenant with -t so that it doesn't try to do autolookup. I see how that could cause confusion -- going to make a wiki to go over some use cases with examples.

Could you give that a try and confirm if that works? Feel free to DM me (@nyxgeek on twitter) if you would be okay with sharing some specifics.