tools: adding the patched/fixed MapPatcher.jar

Allows for easier map conflict resolution.
Prompts the user for confirmation on a tile conflict instead of dying.

Signed-off-by: Mloc-Argent <colmohici@gmail.com>
Merge pull request #4930 from Mloc/bs12-mappatcherpatched

tools: adding the patched/fixed MapPatcher.jar