More config and licence change

• Adds a bunch more config options
• Switches to the Apache license

Fix shadow drawers

• Shadow drawers now properly update on extraction
• Clean up some internals

v1.0.2

• Cache the amount visible in shadow drawers for performance
• Disable inserting in adventure mode

Fix some issues

• Update to mconfig v1.1.1 to fix quilt compat
• Add icon to mod definition
• Rename controller to access point to more clearly state it's purpose
• Fix some problems in the README

First Release

The first release. Featuring 1x1, 2x1, 2x2 and shadow drawers, as well as controllers, connectors, locking and upgrades.