* python3: Update to 3.6.1
The patches starting with 16 are new to fix the build.
Some no longer relevant patches were dropped, the rest is just refreshed.
* Bump pkgrel of all packages containing Python 3 bytecode/extensions.
The package list was generated using:
pkgfile.exe -R mingw64 -r "cpython.*\\.(py[cod]|dll)"
* lensfun: Add cmake to makedepends
* numpy: Don't hardcode the Python version
* blender: rebuild for new Python
* boost: Don't hardcode Python versions; rebuild
* pillow: Don't hardcode Python version; rebuild
* python-dateutil: Don't hardcode Python versions
* sip: Don't hardcode Python versions
* pyqt4: Don't hardcode Python versions; rebuild
* pyqt5: Don't hardcode Python versions; rebuild
* opencv: Update Python3 version in patch
