Migrate from setuptools to poetry; bump version to 1.0.4

pyproject.toml

@@ -1,32 +1,27 @@
 [build-system]
-requires = ['setuptools']
-build-backend = 'setuptools.build_meta'
+requires = ['poetry-core']
+build-backend = 'poetry.core.masonry.api'
 
-[project]
+[tool.poetry]
 name = 'labyrinth-py'
-version = '1.0.3'
+version = '1.0.4'
 description = 'Generate and solve mazes using various algorithms'
-license = {file = 'LICENSE'}
+license = 'MIT'
 readme = 'README.md'
-authors = [
-    {name = 'William Dye'},
-]
+authors = ['William Dye']
 keywords = [
     "dfs", "depth first search", "kruskal's algorithm", "labyrinth", "labyrinth generator", "labyrinth gui",
     "labyrinth solver", "labyrinth ui", "maze", "maze generator", "maze gui", "maze solver", "maze ui",
     "prim's algorithm", "wilson's algorithm",
 ]
-requires-python = '>=3.7'
+repository = 'https://github.com/will2dye4/labyrinth.git'
+packages = [{include = 'labyrinth'}]
+
+[tool.poetry.dependencies]
+python = '^3.7'
 
-[project.scripts]
+[tool.poetry.scripts]
 labyrinth = 'labyrinth.__main__:main'
 labyrinth-ui = 'labyrinth.__main__:gui'
 maze = 'labyrinth.__main__:main'
 maze-ui = 'labyrinth.__main__:gui'
-
-[project.urls]
-Repository = 'https://github.com/will2dye4/labyrinth.git'
-
-[tool.setuptools.packages.find]
-include = ['labyrinth*']
-namespaces = false