[FEATURE] - Custom rate on each task

[xbymarcos]

Hi!
I have been using solidtime for quite some time to manage my development team. We currently provide support to clients which we charge by the hour. Solidtime has always adjusted to the needs we have had in a fantastic way, but lately we have been missing that each task can have a different price per hour than the project (There are tasks that are done in high priority and these must be assigned a different price than the project, usually manually modifying the exported invoice PDF).