Add loading of tiles from png

Fix mapgen

Switch to Vec2D in wavefront algorithm

Add basics of wavefront collapse algorithm

fix typo

update credits

update spanish engine translation

merge to trunk

forbid hiding already hidden hogs

Fixed a memory leak

Fix fill points getting out of bounds when the map is mirrored

Split generation and painting phases, paint by old engine, use template filters

Use rust land generator in hwengine

Update mapgen to take into account actual values for 'zero' and 'basic' colors

Update lfprng for better distribution, make it conform 'rand' package traits

Use LandPixels array allocate in hwengine-future library

Introduce hwengine-future library, use Land allocated in it

Fix infinite loop in rendering of laser sight

Optimize doStepSnowflake a bit, losing backwards compatibility

Improve performance of CheckGearNear

Optimize hwFloat multiplication a bit

Don't enable GL_LINE_SMOOTH for AMD GPUs as a workround for lines and circles not being rendered correctly

Fix camera move control in qmlfrontend

Code formatting, enable c++17 for qmlfrontend

Implement generation of c header from rust interface, adapt qmlfrontend

Adapt hwrunner to the changed API

Allow passing data_path from QML

Implement data path

GameServer: bump network dependency

Remove stray debugging