Drag[en]gine Release 1.29.1

Drag[en]gine

• Changes to support flatpak.
• Switched denetwork and deremotelauncher from nightly tag to official release tag.
• Fixed warnings on newer compilers.

DragonScript

• Left over debug line caused IGDE create project to fail.
• Fixed encodeStringList not handling empty strings correctly.
• Added ECPEnumerationList element class property type.

OpenGL

• Disabled the mip map level reduction for solidity since filter priority solves this problem now.
• Added "solidity.invert" texture property to help with textures where 0 is solid instead of 1.
• Fixed bug in sky rendering bg color causing transparent background if no layers are present.

OpenXR

• Extended libGL.so loading to also try libGL.so.1 if libGL.so is missing.

FBX Skin

• Fixed "TransparencyFactor" images not inverting value (solidity requires 0=solid not 1=solid).

IGDE

World Editor

• Fixed copy objects not copy attach behaviors.

Project Editor

• Modified open directory buttons to create directory if not existing.