Python binding setup refactoring + cibuildwheel workflow (#2026)

* Python bindings: Make the test scripts handy for pytest

* Python bindings: Update MANIFEST.in with new paths

* Update .gitignore to exclude PyCharm-related files/folders

* Python bindings: Update CMakeLists.txt in order to set CMAKE_OSX_ARCHITECTURES var

* Python bindings:
- Moved project package settings to the new TOML format
- Refactored setup.py to cleanup/improve the code and make it ready for cibuildwheel
- Updated README.md with the package long description part
- Removed setup.cfg since universal wheel building will be deprecated soon

* Python bindings:
- Replaced old PyPI-publishing.yml workflow with brand-new one based on cibuildwheel
- Removed old building scripts

* Replaced macos-12 runner with macos-13 since it will be removed soon

* Python bindings: Specify SYSTEM_VERSION_COMPAT=0 env var for macos-13 x86_64 runner as per cibuildwheel warning message

* Python bindings: Enable i686 for debugging

* Python bindings: Enable DEBUG flag according to the presence of tag release

* Python bindings: Added matrix to cover i686 manylinux/musllinux builds

* Python bindings:
- Replaced macos-14 runner with macos-latest
- Bumped cibuildwheel GitHub action to 2.21.3 version

* Python bindings:
- Adapt test_uc_ctl_tb_cache test to the recent changes
- Fixed typos
- PEP8 fixes

* GitHub Action Workflow: Introduce BUILD_TYPE env var to select build type according to the presence of tag release

---------

Co-authored-by: mio <mio@lazym.io>

bindings/python/pyproject.toml

@@ -0,0 +1,40 @@
+[build-system]
+requires = ["setuptools", "build", "wheel"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "unicorn"
+version = "2.1.1"
+requires-python = ">= 2.7, != 3.0.*, != 3.1.*, != 3.2.*, != 3.3.*, != 3.4.*, != 3.5.*, != 3.6.*"
+authors = [
+    { name = "Nguyen Anh Quynh", email = "quynh@gmail.com" },
+]
+description = "Unicorn CPU emulator engine"
+readme = "README.md"
+keywords = ["emulation", "qemu", "unicorn"]
+classifiers = [
+    'License :: OSI Approved :: BSD License',
+    'Programming Language :: Python :: 2.7',
+    'Programming Language :: Python :: 3.7',
+    'Programming Language :: Python :: 3.8',
+    'Programming Language :: Python :: 3.9',
+    'Programming Language :: Python :: 3.10',
+    'Programming Language :: Python :: 3.11',
+    'Programming Language :: Python :: 3.12',
+    'Programming Language :: Python :: 3.13',
+]
+
+[project.urls]
+Homepage = "http://www.unicorn-engine.org"
+Repository = "https://github.com/unicorn-engine/unicorn"
+"Bug Tracker" = "https://github.com/unicorn-engine/unicorn/issues"
+Changelog = "https://github.com/unicorn-engine/unicorn/blob/master/ChangeLog"
+
+[project.optional-dependencies]
+test = [
+    "pytest",
+    "pytest-cov",
+]
+
+[tool.setuptools.packages.find]
+include = ["unicorn*"]