Merge pull request fallahn#110 from ironpowertga/1.9

update to be compatible with tiled 1.9

parse ObjectAlignment node of tile sets.

Merge pull request fallahn#87 from fallahn/github-actions

Move CI to github actions

Merge pull request fallahn#63 from u3shit/tileset-image-size

Add image size to Tileset (fixes fallahn#61)

Merge pull request fallahn#58 from fallahn/inf_map

Add infinite map support

fix parsing map working directory string when inconsistent path separ…

…ators were used

fix parsing image path of collection of images tileset tiles

add parsing image size of collection of images tileset tiles
fix initialising tile terrain indices to zero
fixes #7

add 64bit build config to visual studio project