Moved pygtktalog to pycatalog.

Also, clean up setup things and imports.

setup.cfg

@@ -0,0 +1,41 @@
+[metadata]
+name = pycatalog
+summary = Catalog application for keeping content list of disks and discs
+description_file = README.rst
+author = Roman Dobosz
+author_email = gryf73@gmail.com
+home_page = https://github.com/gryf/pycatalog
+license = BSD
+keywords = catalog, gwhere, collection
+classifier =
+    Development Status :: 4 - Beta
+    Environment :: Console
+    Intended Audience :: End Users/Desktop
+    License :: OSI Approved :: BSD License
+    Operating System :: POSIX :: Linux
+    Programming Language :: Python
+    Programming Language :: Python :: 3
+    Programming Language :: Python :: 3.8
+    Programming Language :: Python :: 3.9
+    Programming Language :: Python :: 3.10
+    Topic :: Database
+    Topic :: Desktop Environment
+
+[install]
+record = install.log
+
+[options.entry_points]
+console_scripts =
+    pycatalog = pycatalog:main
+
+[files]
+packages =
+    pycatalog
+
+[options]
+install_requires =
+    pillow
+    sqlalchemy
+
+[bdist_wheel]
+universal = 1