add links third-party software in about dialog
add links third-party software in about dialog

amakaseev/sprite-sheet-packer,amakaseev/sprite-sheet-packer,TheCodez/sprite-sheet-packer,TheCodez/sprite-sheet-packer,TheCodez/sprite-sheet-packer,amakaseev/sprite-sheet-packer,amakaseev/sprite-sheet-packer,TheCodez/sprite-sheet-packer