V0.6.9 - Reduced confusion around workshop and smithy use

A lot of players were unsure of how to use the workshop or smithy, so I've helped improve this by:
- Adding helpful hints on the workshop and smithy doors. For example, trying to use a workshop door will now say "I can use the workbench outside for carpentry." rather than the generic "Not much to do inside."
- Pressing SPACE near the table of the workshop will now open the carpentry page. This makes the use of a workshop consistent with the smithy