Bump version to 1.1.5

Fix 1.20.5 JAR not being executable

Map decoration slicer

Fix #4: don't re-encode file if it is unchanged

Slice and extend Loom error sprite

Fix #2: don't try to create output directory parents

Fix: swap hunger icon names

Add 1.20.2 slicer

Copy .mcmeta files into output if they exist

Fix: allow the same sprite to be extracted multiple times

Split subproject for 1.14 slicing

Split out slicer utilities

Update to Java 17

Update Gradle wrapper

Initial commit