Version 0.48c - Small update (control, shift, drowners automation)

Version 0.48c. Small udpate.

• Added settings that allow you to use the right mouse button as shift+left mouse, and the middle button as control+click.

• Auto-recycle settings are now kept on restart. Also, a setting has been added that allows reverting to the previous variant.

• Added a setting that allows hiding the effect of the waste (popup text).

• Added two new drowners contracts. One of them allows you to automate upgrades of drowners.