[0.16.5] Construction Cancellation, Windowed Mode, Carrier Job Optimization

[0.16.5]

we added the option to cancel/destroy blueprints
- you can now interact with blueprints to open a menu
- similar to buildings, you can choose to tear down the blueprint by holding a button
- resources that have already been put in the storage will be lost
we added an option to the graphics settings that lets you choose the window mode
- possible options are exclusive fullscreen (the default), fullscreen window and windowed
- in order to select a different monitor (in case of a multi-monitor setup) the best way is to switch to 'windowed' mode then drag the window to the desired monitor and then switch back to fullscreen via the settings menu or via Alt+Enter
we added the mouse wheel as an additional input method for switching weapons

adjusted building costs
- the following changes will NOT be applied to blueprints that you have already placed in your savegame, you'll have to cancel those and re-place them to get the new costs
- Area Tower: 40 Wood --> 20 Wood
- Blacksmith: 15 Wood --> 12 Wood
- Carrier Station: 5 Wood --> 4 Wood
- Forester Hut: 8 Wood + 12 Stone --> 4 Wood + 10 Stone
- Mule Stable: 12 Wood --> 10 Wood
- Stockpile: 10 Wood + 5 Stone --> 6 Wood + 4 Stone
we further optimized behaviour of carriers
- carriers will now immediately detect changes to the target or source storage while executing their job
- therefore they should not walk any unnecessary distances anymore (e.g. walk to source storage but then don't pick up any item)
- if the target storage fills up (through player interception) while carriers already have an item picked, they will still proceed to the target storage and then drop the item next to it
- however, since they now only ever start picking up resources if there is space in the target storage, the resources piling up at the target storage should not happen anymore, except if you as a player manually dropresources into the storage to fill it up